Bug#1023623: dolphin: In file rename dialog: Delete and Backspace act on file, not on text

[6251d5d9-c833-4b45-8e6e-261c9164db95@p12z.de]

Hi

I had the same symptoms and found a cause that I want to share with you.

For me, the cause was keyboard layouts. When I had German T3 or German 
E1 enabled or even only in the list of active layouts in Plasma, I 
observed the described behaviour.

I had this configured, because it is given as a workaround for neoqwertz 
layout on https://www.neo-layout.org/Probleme/FAQ/#linux-unix-bsd

The third workaround option (setting modifier_mapping) had the same effect.

Cure: have only one keyboard layout "German" configured in KDE Plasma.

Regards
Philipp Schwarz