Steps to reproduce:
1) Open any not locked .gb file
2) Select any annotation in annotation tree view and press <F2>.
Expected state: Opened "Edit annotation" dialog
3) In external program (for example Notepad) change and save opened in UGENE .gb file.
Expected state: UGENE show dialog about reloading file
4) Click "Yes" or "Yes to All".
UGENE will crash.