$ git clone -n https://src.fedoraproject.org/rpms/python-resolvelib.git /var/lib/mock/f40-build-2231966-53314/root/chroot_tmpdir/scmroot/python-resolvelib
Cloning into '/var/lib/mock/f40-build-2231966-53314/root/chroot_tmpdir/scmroot/python-resolvelib'...
$ git fetch origin b71185e83c881f4dbf480bc7d28fc4ea0eecfc3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-resolvelib
 * [new ref]         b71185e83c881f4dbf480bc7d28fc4ea0eecfc3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b71185e Simplify build dependencies