$ git clone -n https://src.fedoraproject.org/rpms/ghc-call-stack.git /var/lib/mock/f41-build-837465-159151/root/chroot_tmpdir/scmroot/ghc-call-stack
Cloning into '/var/lib/mock/f41-build-837465-159151/root/chroot_tmpdir/scmroot/ghc-call-stack'...
$ git reset --hard 01c3932c1ce13d997515deefcbfae10035ea9bea
HEAD is now at 01c3932 bump release