$ git clone -n https://src.fedoraproject.org/rpms/python-jsmin.git /var/lib/mock/f45-build-31261-651/root/chroot_tmpdir/scmroot/python-jsmin
Cloning into '/var/lib/mock/f45-build-31261-651/root/chroot_tmpdir/scmroot/python-jsmin'...
$ git fetch origin 9de87798a71ea64303a2419af50a2d542bd6d455:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jsmin
 * [new ref]         9de87798a71ea64303a2419af50a2d542bd6d455 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9de8779 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild