SAFE_POINT after deleting exported document in ugebegb format from the disk

Release candidate v.40.0
Scenario:

1. Download data package from https://www.ncbi.nlm.nih.gov/search/all/?term=P.1
2. Load data/cds.fna file
3. "Sequence Reading options" dialog appears
4. Select second option "Merge sequence into a single sequence ..." and click OK
5. Wait loading the file and open context manu on it
6. Select "Exporting Document" menu item
7. Select "ugenegb" file format and click OK
8. Wait until exported document will created
9. Go into folder with created document and delete it
10. "File modification dialog" appears
    SAVE_POINT in the log and application hangs!

    [ERROR][14:52] Error opening SQLite database: unable to open database file!
    [ERROR][14:52] Trying to recover from error: Error: connection is NULL! at C:\BuildAgent\work\release\ugene\src\corelibs\U2Gui\src\util\project\ProjectUpdater.cpp:151
    [ERROR][14:52] Trying to recover from error: Error opening SQLite database: unable to open database file! at C:\BuildAgent\work\release\ugene\src\corelibs\U2Core\src\models\GObject.cpp:162
    [ERROR][14:52] Error opening SQLite database: unable to open database file!
    

See attachment