need help with "stg clone"

Hello all, 

I just try to switch from hg and hg-mq to git and now "stg clone" does not 
work as expected and I also don't find the answer anywhere.

If I clone with "stg clone dir other-dir", I expect and need that in 
"other-dir" still all patches can be pushed and popped from the branch. But 
that does not work

bernd@bathl lustre-1.8.3-ddn>stg applied
improve_autogen.patch
bug21581.patch
lustre-ddn-version.patch
disable_lru_resize.patch
bug22729_size_t.patch


# So a number of patches are applied to the Lustre branch. Now lets clone 
that:

cd ..
stg clone lustre-1.8.3-ddn/ ../lustre-1.8.3-ddn1-build
cd ../lustre-1.8.3-ddn1-build


# And now stg does not work anymore in that directory
bernd@bathl lustre-1.8.3-ddn1-build>stg series
bernd@bathl lustre-1.8.3-ddn1-build>

# Aaarg where are my patches?
git log
...

(shows all patches applied)


So either I'm doing something wrong, or stacked git will not suitable for my 
needs.

Any ideas or help would be greatly appreciated.


Thanks,
Bernd