$ git clone -n https://src.fedoraproject.org/rpms/ghc-Diff.git /var/lib/mock/f41-build-837458-159151/root/chroot_tmpdir/scmroot/ghc-Diff
Cloning into '/var/lib/mock/f41-build-837458-159151/root/chroot_tmpdir/scmroot/ghc-Diff'...
$ git reset --hard 66b6a90c79461d59ac68e58a9c0b4084fc5598a1
HEAD is now at 66b6a90 bump release