Created attachment 147283 [details] Example result SUMMARY After entering a text containing an Umlaut (ä,ö,ü), one is able to delete one more character per Umlaut than should be allowed, i. e. one is able to delete part of the shell prompt ([user@pc ~]$ ). STEPS TO REPRODUCE 1. Enter several Umlaute. 2. Hit backspace until you can't delete anymore characters. OBSERVED RESULT E. g. for 4 Umlaute, one can delete the "~]$" from the shell prompt. EXPECTED RESULT Not being able to remove more characters than I typed (I assume this has something to do with the encoding of an Umlaut needing two Unicode characters). SOFTWARE/OS VERSIONS Linux/KDE Plasma: Manjaro Linux (4.19.230-1-MANJARO) (64-bit) (available in About System) KDE Plasma Version: 5.24.2 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.2 Graphics Platform: X11