AssertionError when attribute node name is "&&"

[mmiller-max]

MWE from a fresh Julia session:

julia> using EzXML
[ Info: Precompiling EzXML [8f5d6c58-4d21-5cfd-889c-e3ad7ee6a615]
julia> node = AttributeNode("name", "&&")
EzXML.Node(<ATTRIBUTE_NODE[name]@0x00007fa47bb75610>)
julia> node.content
ERROR: AssertionError: isempty(XML_GLOBAL_ERROR_STACK)
Stacktrace:
 [1] macro expansion at /Users/user/.julia/packages/EzXML/ZNwhK/src/error.jl:49 [inlined]
 [2] nodecontent(::EzXML.Node) at /Users/user/.julia/packages/EzXML/ZNwhK/src/node.jl:1126
 [3] getproperty(::EzXML.Node, ::Symbol) at /Users/user/.julia/packages/EzXML/ZNwhK/src/node.jl:398

If I debug into @catch, XML_GLOBAL_ERROR_STACK contains EzXML.XMLError[], and if I call throw_xml_error() whilst debugged:

debug> throw_xml_error()
ERROR: XMLError: unterminated entity reference               & from tree module (code: 1302, line: 0)

I'm guessing xmlNewDocProp in AttributeNode can't accept a string containing "&&". Rather than using an AttributeNode I tried using setindex! to set the same attribute. This worked and I can see that the name is &&amp.