Filter hides to many nodes

[vsandre]

The new filter option is very nice. And it has long needed.

But I have the problem that nodes were hid wrongly. This occurs when a highway uses the same nodes as a landuse area. If I check the landuse-filter the landuse polygone and all its nodes disappear. All right. But the nodes oft the highway (which is already displayed) disappear, too. So it is not possible select a node for merging or cutting.

So the node should be displayed if it is used by a not hidden element.

To prevent false moved nodes, the position should be locked (e.g. marked as red x). If you want to delete the node, it should only be removed from the displayed ways and disappear. (but not be deleted)

[stoecker]

Closed as duplicate of #4998.