chore: fix panic file touch (#1665)

Co-authored-by: Junfu Chen <[email protected]>

scripts/loader

@@ -100,9 +100,9 @@ done
 if [ $sigterm_received -eq 0 ] && is_directory_link "${GG_ROOT}/alts/old" && is_directory_link "${LAUNCH_DIR}"; then
   flip_link "${LAUNCH_DIR}" "${GG_ROOT}/alts/broken"
   flip_link "${GG_ROOT}/alts/old" "${LAUNCH_DIR}"
-fi
 
-## Touch an empty file to indicate rollback due to unexpected Nucleus exit
-touch "${GG_ROOT}/work/aws.greengrass.Nucleus/restart_panic"
+  ## Touch an empty file to indicate rollback due to unexpected Nucleus exit
+  touch "${GG_ROOT}/work/aws.greengrass.Nucleus/restart_panic"
+fi
 
 exit ${kernel_exit_code}

scripts/loader.cmd

@@ -117,6 +117,9 @@ IF !IS_SYMLINK! EQU 1 (
     IF !IS_SYMLINK! EQU 1 (
         CALL :flip_links "%LAUNCH_DIR%" "%GG_ROOT%\alts\broken"
         CALL :flip_links "%GG_ROOT%\alts\old" "%LAUNCH_DIR%"
+
+        @REM Touch an empty file to indicate rollback due to unexpected Nucleus exit
+        echo. > "%GG_ROOT%\work\aws.greengrass.Nucleus\restart_panic"
     )
 )