Fix rubber band not going away after right-click
Summary: Fix rubber band not going away after right-click in the folder view
Test Plan:
Hold left click
Drag to make rubber band
Right click
Reviewers: Dolphin, ngraham, elvisangelaccio
Reviewed By: Dolphin, ngraham
Subscribers: elvisangelaccio, ngraham, kfm-devel
Tags: Dolphin
Differential Revision: https://phabricator.kde.org/D21590