Disable background click to prevent deselection of all items.

src/UI/Settings/Quality/Profile/Edit/QualitySortableCollectionView.js

@@ -16,8 +16,6 @@ define(
             events: {
                 'click li, td' : '_listItem_onMousedown',
                 'dblclick li, td'  : '_listItem_onDoubleClick',
-                'click'            : '_listBackground_onClick',
-                'click ul.collection-list, table.collection-list' : '_listBackground_onClick',
                 'keydown'          : '_onKeydown'
             }
         });