Fixes internal Script Editor crash with External Editor active #82956
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Prevent the internal Script Editor from reloading when the external Editor is active in the settings.
This prevents a crash from different race conditions from editing files in the external editor while the internal editor tries to reload open file tabs.
Some conditions that cause the crash where:
gdscript_highlighter.cpp
,syntax_highlighter.cpp
)code_edit.cpp
)This solves the crashes mentioned in #71016
I was able to reproduce the different crashes as mentioned in #71016 (comment)