Plugin Tree: After Ungrouping Parent Jump To Wrong Position

If I installed a new VST plugin and add a group to it, lets say “filter” I have “vendor->filter->plugin”. Now if I ungroup the group “vendor”, so the plugin will be moved into “filter->plugin”, the list position jumps to the very first group “filter” afterwards, not to the one the plugin now resides, but to the group “filter” of the above AU section.