[CMake] complete rebuild

[Peter Kümmel]

I also stumbled over this and found that it has
to do with subversion. After reverting a file
Studio is totally confused and shows this buggy
behavior.

Only re-opening the solution helps. But after
the next svn revert it starts again rebuilding
everything.

Anders, is your project also managed by svn?
Here I've installed
- svn, Version 1.6.15 (SlikSvn/1.6.15) X64
- TortoiseSVN 1.6.12, Build 20536 - 64 Bit

for both the same behavior.

Already thinking about git-svn.

Peter