port uninstall should consider upgraded ports

[Yves de Champlain]

Hi

Example (the story is real, only the versions numbers have been  
changed) :

port upgrade gtk2
	...
port installed :
	gtk2 2.10.4
	gtk2 2.10.8 (active)
port uninstall inactive :
	can't uninstall gtk2 2.10.4 because gimp2 depends on it.

I am right to expect NOT having to force such an uninstall ?

yves