open a spreadsheet with LibreOffice (for instance)
open it with OO also. In the title bar, the file is mentioned as “(read only)”.
save it as a new file
The “(read only)” mention should vanish but is still there as long as the file is opened.
Minor display issue without any other consequence.
Is it possible to record a video file with your test? Also please let us know the location of new file in your test. Do you save it to some network folder or to the same folder as original file located?