new layer-based sample editor: move layer up/down: other symbol, segfault

Layers currently have three action buttons: color, delete, up/down.

• Clicking up/down causes segfault.
• The icon rather stands for "menu". Replace by icon with up/down arrows.

added GUI release-critical labels

Clicking up/down causes segfault.

Not reproducible on my side. Any special steps to reproduce? Otherwise I have to try with Linux, maybe it's OS dependend.

assigned to @m.puchner

mentioned in merge request !429 (merged)

marked the checklist item The icon rather stands for "menu". Replace by icon with up/down arrows. as completed

I tried to reproduce the crash on Windows and Linux, but I couldn't.

@j.wuttke I assign to you, could you please add steps how to reproduce the crash? Thanks!

assigned to @j.wuttke and unassigned @m.puchner

confirmed with gcc 10.2.1

mentioned in merge request !436 (closed)

To reproduce: just clicking before any moving

assigned to @m.puchner and unassigned @j.wuttke

mentioned in merge request !440 (merged)

mentioned in commit ac2302fb

closed with merge request !440 (merged)

marked the checklist item Clicking up/down causes segfault. as completed