Icon preview crash
This MR Fixes crash on drawing rectangle after icon preview dialog is closed.
How To replicate Issue:
- Open Inkscape
- Draw rectangle
- Open Icon Preview (View->Icon Preview)
- Delete/create rectangle (play around a bit)
- Close Icon Preview Dialog
- Delete all items.
- Create a rectangle
What Happened:
Crash
Reason for Crash:
In destructor of Icon Preview dialog, drawing item was deleted without hiding vision key.
How this MR resolved:
used invoke_hide(key)
before deleting drawing.