Bug#792321: Segfaults on session start

[Johan Thelin <e8johan@gmail.com>]

I experienced the same issue now and removed .local/share/kscreen. I
diffed the old and new versions and got the following:

e8johan@e8xps:~/.local/share$ diff kscreen kscreen.old/
Only in kscreen.old/: 38190874a59ba403b4d89e66b38cb1c4
Only in kscreen.old/: 49119e58c49c2ba7810bd3bd0d886fe9
Only in kscreen.old/: 4a528cc44dde607d8f1702766a1ef355
Only in kscreen.old/: 53ed81ff261fc3e226b33042e113fe17
diff kscreen/5f21808d100770b15a3193a13df13e1a
kscreen.old/5f21808d100770b15a3193a13df13e1a
17,18c17,18
<             "x": 0,
<             "y": 0
---
>             "x": 2560,
>             "y": 520
20c20
<         "primary": true,
---
>         "primary": false,
Only in kscreen.old/: 5f2ef157575fb56df36fb714ed92e51b
Only in kscreen.old/: 66e87988a5f5e24cd3141742aeb1214a
Only in kscreen.old/: 7d3554797bcb848dc0db9ebcd599e7d1
Only in kscreen.old/: 8c954a037535ab8e8ff15144ce1fc2f1
Only in kscreen.old/: 93ccf39591079a60505a6d3a74797050
Only in kscreen.old/: 9e55c5c627abe19073ebe3b2a48d5d86
Only in kscreen.old/: ca0f1edbab7b021b314b3f4b55512cb5

As you can see, the position of the screen has somehow been messed up
when I unplugged my external screen, resulting in a blank screen when
entering a new session (after a reboot).

Best regards,

Johan Thelin