Regression: Window menu not updated when using ALT+mnemonic key
Regression after the merge of !10 (merged)
To reproduce:
- Open some folder, select some files inside thefolder
- open edit menu with ALT+mnemonic key
Result: copy/cut/paste are greyed out, since menu was not updated before "show"
Proposed solution: Update menu on "show" signal, not (only) on "button-press-event"