Merge remote-tracking branch 'origin/dev' into dev
Merge remote-tracking branch 'origin/dev' into dev
fixed #63 If you select all objects in the search results tree or the navigator tree with Ctrl-a, the selection will be ignored during a drag event.
Merge branch 'bug/63-drag-problem-with-the-selection' into dev
#63 consider mouse clicks on an already selected node, which do not fire tree selection events