Created attachment 131776 [details]
STEPS TO REPRODUCE
1. open Kate text editor
2. type anything and press ctrl+s
3. set file name to "file".txt and press enter/return
the file is not save and an error message says "You can only select one file".
See the attached screenshot please.
the file sohuld be saved
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.19.90
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
Heh, can confirm.
this concerns saving contrary to https://bugs.kde.org/show_bug.cgi?id=185433