[KUrlNavigator] Re-activate on mouse middle button click
Summary:
When using the mouse middle button to open a folder when
the kurlnavigator was disabled, it was not re-activated.
BUG: 386453
Test Plan:
In Dolphin, open the split view and use the mouse middle button
to open a folder in a new tab on the 'disabled' splitted view.
Reviewers: Frameworks, elvisangelaccio, ngraham
Reviewed By: elvisangelaccio, ngraham
Subscribers: ngraham, kde-frameworks-devel
Tags: Frameworks
Differential Revision: https://phabricator.kde.org/D17114