Recovery dialogue on start-up shown although saved and closed properly

[ytzemih]

JabRef 5.1--2020-03-12--23034ce
Linux 5.4.19-050419-generic amd64
Java 13.0.2

• I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Steps to reproduce the behavior:

1. For a test bib file, delete bak/sav files if any
2. Open test file in JR
3. Do some edits, save, and close JR such that test file is automatically reopened when starting JR again (i.e. just leave the tab open)
4. Start JR again
5. Dialogue asking to recover from backup file appears although test file has been saved properly and JR been closed normally.

No (other/related) errors show on the command line. I can only reproduce that behaviour if I actually edit the file. Without edits the error doesn't show.

[stefan-kolb]

Duplicate of #6092?

[koppor]

Refs JabRef#391

[koppor]

Does "Error while deleting the backup file." appear somewhere in the log file?