Kate switches automatically to stash file

Hi,

I'm using Kate (v24.12.2) on Tuxedo Linux (an Ubuntu derivative) and
am experiencing a strange issue:

When I open a file in Kate, make a change and wait a few seconds, the
tab title changes to something like 'Dokument 18'. This file,
'Dokument 18', is stored in
~/.local/share/kate/stash/MyDefaultSession.katesession/, and it
receives all the changes that I make to the file; the original file is
not changed. In this case, it's very difficult to change the original
file =E2=80=94 I have to save quickly before Kate changes the tab title.

However, this behaviour does not occur every time. It seems to happen
more often when the file is opened just before changes are made.

Could someone please help me identify the problem and how to avoid it?

Thanks, Stefan