From discussion on IRC:
[14:44:09] <kfunk> show() should be enough, QDialog takes care of setting the focus in case its shown afaik
[14:44:11] <kfunk> also see http://stackoverflow.com/questions/2903144/how-to-set-input-focus-to-a-shown-dialog-in-qt
[14:45:26] <kfunk> blackjack1: same for other dialogs? e.g. navigate to a decl, then press shift+alt+r
[14:46:03] <blackjack1> nope
[14:46:08] <blackjack1> other dialogs work fine
[14:48:05] <kfunk> hm
[14:48:13] <blackjack1> strange indeed
[14:53:49] <kfunk> blackjack1: unsure if we should merge this. please try to figure out why it's just broken for that dialog

No, sorry, didn't have time :(

Please abandon if you don't plan any further changes.

I don't think this patch is needed after all.