$ git clone -n https://src.fedoraproject.org/rpms/python-jinja2-time.git /var/lib/mock/f45-build-31260-651/root/chroot_tmpdir/scmroot/python-jinja2-time
Cloning into '/var/lib/mock/f45-build-31260-651/root/chroot_tmpdir/scmroot/python-jinja2-time'...
$ git fetch origin a257783a0fde34cf430ad714ac39539798f23998:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jinja2-time
 * [new ref]         a257783a0fde34cf430ad714ac39539798f23998 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a257783 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild