Working directory is the same for different builds

I'm developing a cmake-based project and use three builds of it: release, debug and relwithdebinfo (corresponding to cmake' build types). All builds have
different build directories and I also want to have different working
directories for them. In previous versions of qtcreator for each build these
directories can be setup independently, but in 2.6.0 if I change, for example,
working directory for release-build, it also change for debug- and
relwithdebinfo-builds, become the same for all builds. Looks like a regression
for me..