$ git clone -n https://src.fedoraproject.org/rpms/python-coprtree.git /var/lib/mock/f45-build-30150-643/root/chroot_tmpdir/scmroot/python-coprtree
Cloning into '/var/lib/mock/f45-build-30150-643/root/chroot_tmpdir/scmroot/python-coprtree'...
$ git fetch origin ac0eaf1446f7bcbcf00b774e16215538b32bb31a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-coprtree
 * [new ref]         ac0eaf1446f7bcbcf00b774e16215538b32bb31a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac0eaf1 Update to 0.1.4 upstream release