Created attachment 87778 [details]
Konsole crash if you press TAB if input is empty

Konsole of Neon PPA seems to crash in some cases if you trigger an autocomplete.

Cases, I'm getting it to crash:

- Start Konsole, press TAB
- Start Konsole, type 'cd M' (for 'Music'), press TAB
- Start Konsole, type 'M' (so it's just autocompleting folder name), press TAB
- Start Konsole, type '/u' (for '/usr/'), press TAB, type 'b' (for '/usr/bin/'), press TAB, type 'f' or 'fi' (for 'firefox'), press TAB

It won't crash if you:

- Start Konsole, type 'cd Mu' (for 'Music'), press TAB
- Start Konsole, type '/u' (for '/usr/'), press TAB
- Start Konsole, type '/u' (for '/usr/'), press TAB, type 'b' (for '/usr/bin/'), press TAB
- Start Konsole, type '/u' (for '/usr/'), press TAB, type 'b' (for '/usr/bin/'), press TAB, type 'fir' (for 'firefox'), press TAB

Notes:

- I also may crash, if you press RETURN on an empty input line, I already filed a bug report for this.