$ git clone -n https://src.fedoraproject.org/rpms/python-progressbar2.git /var/lib/mock/f45-build-32129-657/root/chroot_tmpdir/scmroot/python-progressbar2
Cloning into '/var/lib/mock/f45-build-32129-657/root/chroot_tmpdir/scmroot/python-progressbar2'...
$ git fetch origin 15c3e760d53d6a95cbec10a98950290ab8422172:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-progressbar2
 * [new ref]         15c3e760d53d6a95cbec10a98950290ab8422172 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15c3e76 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild