KBookmarkManager: clear memory tree when the file is deleted
This is unlikely to happen in real apps, but it can happen in unittests. I'm now doing that in KIO's kfileplacesmodeltest to let KFilePlacesModel recreate the default set of bookmarks.
This is unlikely to happen in real apps, but it can happen in unittests. I'm now doing that in KIO's kfileplacesmodeltest to let KFilePlacesModel recreate the default set of bookmarks.