Fix activation of a brush preset when it is selected by a dragging action
NOTE: please let this patch to be tested for a couple of weeks before
merging it into 4.1.
KoResourceItemChooser::activated() we should check the actual resource
that is passed to a function instead of requesting the currently selected,
because it might still be not updated (when calling this function in
selectionChanged() callback).
BUG:394440