Doesn't update root partition info after repartitioning

Binary package hint: ubiquity

I didn't know XFS can't be used for root, so at the stage of partitioning i created XFS partition. Then i got error in next step. So i used "back" button, removed XFS partition and added ResierFS one. Clicked "next" button and... got the same error about XFS.

Next time i started insllation i already had ReiserFS empty and waiting for Ubuntu :). So i just clicked "next" without changing partitions. Then i selected it as a root and after clicking "next" i saw error about "no root selected". eh? so i repeated operation and got the same error.

Only after i deleted and then created again ReiserFS partition at partitioning stage of installer, it worked ok.

So it looks like it doesn't refresh it's info about partitions. It also doesn't allow using already existing partition.