Fix crash in tree_follower.cpp

[czlitony]

CONTEXT:  (.ecxr)
rax=0000008ec28fc538 rbx=0000008ec28fcd80 rcx=0000008ec28fc538 rdx=0000008ec28fc718 rsi=0000008ec1afcbe0 rdi=0000027fbec16928 rip=00007ff6c48d222b rsp=0000008ec28fc500 rbp=0000008ec28fc600
 r8=0000027fbec16790  r9=0000008ec28fcd80 r10=0000000000000000
r11=0000008ec28fc768 r12=0000008ec28fc750 r13=0000027fc0ea02b0 r14=0000027fbec16790 r15=0000008ec28fc778
iopl=0         nv up ei pl nz na po nc
cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010206
spark_client_framework_integration_tests!std::_Tuple_val::{ctor} [inlined in spark_client_framework_integration_tests!std::transform > >,std::back_insert_iterator,std::allocator > > >,`mls_v4::mls_ds::resolve'::`2':: >+0x137]:
00007ff6`c48d222b 488b06          mov     rax,qword ptr [rsi] ds:0000008e`c1afcbe0=0000000000000000
Resetting default scope

FAULTING_IP: 
spark_client_framework_integration_tests!std::transform<std::_Vector_const_iterator<std::_Vector_val<std::_Simple_types<mls_v4::ProposalOrRef> > >,std::back_insert_iterator<std::vector<std::tuple<mls_v4::Sender,mls_v4::Proposal>,std::allocator<std::tuple<mls_+137 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\algorithm @ 3741]
00007ff6`c48d222b 488b06          mov     rax,qword ptr [rsi]

EXCEPTION_RECORD:  (.exr -1)
ExceptionAddress: 00007ff6c48d222b (spark_client_framework_integration_tests!std::_Tuple_val<mls_v4::Sender>::{ctor})
   ExceptionCode: 80000001 (Guard page violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 0000000000000000
   Parameter[1]: 0000008ec1afcbe0


 # Child-SP          RetAddr           Call Site
00 0000008e`c28fafb8 00007ff8`ce82e5f3 ntdll!NtWaitForMultipleObjects+0x14
01 0000008e`c28fafc0 00007ff8`ce82e4c1 b_lngehgyu!WaitForMultipleObjectsEx+0x123
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for w_hljlwx.dll - 
02 0000008e`c28fb2b0 00007ff8`d13f12b0 b_lngehgyu!WaitForMultipleObjects+0x11
03 0000008e`c28fb2f0 00007ff8`d141898d w_hljlwx!HeapUnlock+0x640
04 0000008e`c28fb470 00007ff8`ce8fab6c w_hljlwx!WerpLaunchAeDebug+0x21fd
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for Protector64.dll - 
05 0000008e`c28fb4c0 00007ff8`9b03cc5a b_lngehgyu!UnhandledExceptionFilter+0x34c
06 0000008e`c28fb5b0 00007ff8`d174925f Protector64!DummyExport+0x39bba
07 0000008e`c28fb5e0 00007ff8`d1706b53 ntdll!strncpy+0x13cf
08 0000008e`c28fb610 00007ff8`d174623f ntdll!_C_specific_handler+0x93
09 0000008e`c28fb680 00007ff8`d16545d7 ntdll!_chkstk+0x9f
0a 0000008e`c28fb6b0 00007ff8`d1745b7e ntdll!RtlWow64GetCurrentCpuArea+0xc17
0b 0000008e`c28fbe00 00007ff6`c48d222b ntdll!KiUserExceptionDispatcher+0x2e
*** WARNING: Unable to verify checksum for spark-client-framework-integration-tests.exe
0c 0000008e`c28fc500 00007ff6`c48d23f1 spark_client_framework_integration_tests!std::transform<std::_Vector_const_iterator<std::_Vector_val<std::_Simple_types<mls_v4::ProposalOrRef> > >,std::back_insert_iterator<std::vector<std::tuple<mls_v4::Sender,mls_v4::Proposal>,std::allocator<std::tuple<mls_v4::Sender,mls_v4::Proposal> > > >,`mls_v4::mls_ds::resolve'::`2'::<lambda_1> >+0x137 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\algorithm @ 3741] 
0d 0000008e`c28fc710 00007ff6`c48d29c5 spark_client_framework_integration_tests!mls_v4::stdx::transform<std::tuple<mls_v4::Sender,mls_v4::Proposal>,std::vector<mls_v4::ProposalOrRef,std::allocator<mls_v4::ProposalOrRef> >,`mls_v4::mls_ds::resolve'::`2'::<lambda_1> >+0x4d [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\mlspp_v4\include\mls\common.h @ 221] 
0e 0000008e`c28fc770 00007ff6`c48d2a78 spark_client_framework_integration_tests!mls_v4::mls_ds::resolve+0x27d [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\mlspp_v4\lib\mls_ds\src\tree_follower.cpp @ 29] 
0f (Inline Function) --------`-------- spark_client_framework_integration_tests!mls_v4::mls_ds::apply+0x1d [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\mlspp_v4\lib\mls_ds\src\tree_follower.cpp @ 112] 
10 0000008e`c28fcd50 00007ff6`c4863b94 spark_client_framework_integration_tests!mls_v4::mls_ds::TreeFollower::update+0x80 [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\mlspp_v4\lib\mls_ds\src\tree_follower.cpp @ 151] 
11 0000008e`c28fd1b0 00007ff6`c4865a62 spark_client_framework_integration_tests!e2ee_v4::details::State::complete_join+0x414 [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\libe2ee\vX\src\details.cpp @ 1242] 
12 0000008e`c28fed00 00007ff6`c4842ea6 spark_client_framework_integration_tests!e2ee_v4::details::State::handle+0xa6 [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\libe2ee\vX\src\details.cpp @ 576] 
13 0000008e`c28fed70 00007ff6`c483f251 spark_client_framework_integration_tests!e2ee_v4::E2EE::handle_light_tree_response+0x46 [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\libe2ee\vX\src\e2ee.cpp @ 556] 
14 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::_Func_class<void,e2ee_v4::LightTreeResponse &&>::operator()+0x1e [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\functional @ 920] 
15 0000008e`c28fedc0 00007ff6`c483fd73 spark_client_framework_integration_tests!``e2ee_v4::E2EE::mes_request_response<e2ee_v4::LightTreeRequest,e2ee_v4::LightTreeResponse>'::`2'::<lambda_1>::operator()'::`2'::<lambda_1>::operator()+0xbd [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\libe2ee\vX\src\requests.h @ 51] 
16 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::invoke+0x5 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\type_traits @ 1705] 
17 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::_Variant_dispatcher<std::integer_sequence<unsigned __int64,1> >::_Dispatch2+0x5 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\variant @ 1414] 
18 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::_Visit_strategy<1>::_Visit2+0x24 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\variant @ 1489] 
19 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::_Visit_impl+0x24 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\variant @ 1543] 
1a (Inline Function) --------`-------- spark_client_framework_integration_tests!std::visit+0x24 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\variant @ 1588] 
1b (Inline Function) --------`-------- spark_client_framework_integration_tests!e2ee_v4::E2EE::mes_request_response::__l2::<lambda_1>::operator()+0x3c [J:\JenkinsWorkspace\WX\spark-client-framework\thirdparty\libe2ee\vX\src\requests.h @ 45] 
1c (Inline Function) --------`-------- spark_client_framework_integration_tests!std::invoke+0x3c [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\type_traits @ 1705] 
1d 0000008e`c28ff030 00007ff6`c36c3940 spark_client_framework_integration_tests!std::_Func_impl_no_alloc<`e2ee_v4::E2EE::mes_request_response<e2ee_v4::LightTreeRequest,e2ee_v4::LightTreeResponse>'::`2'::<lambda_1>,void,std::variant<e2ee::HTTPSuccess,e2ee::HTTPFailure> &&>::_Do_call+0x43 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\functional @ 874] 
1e (Inline Function) --------`-------- spark_client_framework_integration_tests!std::_Func_class<void,std::variant<e2ee::HTTPSuccess,e2ee::HTTPFailure> &&>::operator()+0x16 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\functional @ 920] 
1f 0000008e`c28ff080 00007ff6`c36c6715 spark_client_framework_integration_tests!`E2EESession::makeRequest'::`2'::<lambda_1>::operator()+0x34 [J:\JenkinsWorkspace\WX\spark-client-framework\Services\MediaEncryptionService\adapter\MediaEncryptionAdapter\E2EESession.cpp @ 525] 
20 0000008e`c28ff270 00007ff6`c2084f41 spark_client_framework_integration_tests!``E2EESession::makeRequest'::`2'::<lambda_6>::operator()'::`31'::<lambda_5>::operator()+0x9d9 [J:\JenkinsWorkspace\WX\spark-client-framework\Services\MediaEncryptionService\adapter\MediaEncryptionAdapter\E2EESession.cpp @ 640] 
21 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::_Func_class<void>::operator()+0x16 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\functional @ 920] 
22 0000008e`c28ff520 00007ff6`c4c09758 spark_client_framework_integration_tests!TaskFunction::operator()+0x441 [J:\JenkinsWorkspace\WX\spark-client-framework\TaskFunction.h @ 76] 
23 0000008e`c28ff730 00007ff6`c4c07501 spark_client_framework_integration_tests!AsyncQueue::Context::doWork+0xb1c [J:\JenkinsWorkspace\WX\spark-client-framework\AsyncQueue\AsyncQueue.cpp @ 188] 
*** ERROR: Symbol file could not be found.  Defaulted to export symbols for ucrtbase.dll - 
24 (Inline Function) --------`-------- spark_client_framework_integration_tests!AsyncQueue::{ctor}::__l5::<lambda_1>::operator()+0x8 [J:\JenkinsWorkspace\WX\spark-client-framework\AsyncQueue\AsyncQueue.cpp @ 60] 
25 (Inline Function) --------`-------- spark_client_framework_integration_tests!std::invoke+0x8 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\type_traits @ 1695] 
26 0000008e`c28ffaf0 00007ff8`ceed37b0 spark_client_framework_integration_tests!std::thread::_Invoke<std::tuple<`AsyncQueue::AsyncQueue'::`5'::<lambda_1> >,0>+0x11 [C:\visual_studio\vs_build_tools_17.12.3\VC\Tools\MSVC\14.42.34433\include\thread @ 61] 
27 0000008e`c28ffb20 00007ff8`d13ce8d7 ucrtbase!wcsrchr+0x150
28 0000008e`c28ffb50 00007ff8`9b010b7a w_hljlwx!BaseThreadInitThunk+0x17
29 0000008e`c28ffb80 00007ff8`d161c34c Protector64!DummyExport+0xdada
2a 0000008e`c28ffc10 00000000`00000000 ntdll!RtlUserThreadStart+0x2c