Fix crash when NPC gives player equipment #39238
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ZhilkinSerg
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<Bugfix>
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Summary
SUMMARY: Bugfixes "Fix crash when NPC gives player equipment"
Purpose of change
Fixes #39186. According to the crash log the pure virtual function handler was called. Since the related classes do not call any virtual functions in their ctor or dtor the problem was probably a use-after-free. And it turned out that the code to randomly select an item from NPC inventory erases an item even if it's the selected item.
Describe the solution
Do not erase the selected item.
Testing
Debug spawned a few NPCs, traded with them so their inventory contains only two items, and modified their owed status to a high positive number so they were willing to share, and asked them to share equipment. The game no longer crashed after the fix.