"split way" is splitting an other way instead of the selected

[mdk]

I found that "split way" action (P) will spit a different way instead of the selected in some cases. I attached a sample file.

To reproduce:

• load file
• select landuse area
• multiselect the node where the highway crosses the landuse
• press "P"

What should happen:

• the landuse should be splitted into two areas

What happens instead:

• the highway is added to the selection
• the highway is splitted into two parts

I think the problem is the self intersecting (illegal) landuse area. The easiest way to fix this error is splitting the area. But this is not possible, because an other way will be splitted instead.