Nikita Vertikov authored Jul 18, 2017 and Dmitry Kazakov committed Jul 18, 2017

QLineEdit gives away to Qt's shortcut system
some key events (basically, everything with modiiers)
even if it could handle them and use for text editing,
when there is registered shortcut, matching this key input.

Example: pressing "ctrl+backspace" (used to delete word
         left from cursor) in layer name editing field
         will cause filing canvas with background color,
         instead of deleting word left from cursor.

Differential Revision: https://phabricator.kde.org/D5265