$ git clone -n https://src.fedoraproject.org/rpms/python-fixtures.git /var/lib/mock/f45-build-30665-647/root/chroot_tmpdir/scmroot/python-fixtures
Cloning into '/var/lib/mock/f45-build-30665-647/root/chroot_tmpdir/scmroot/python-fixtures'...
$ git fetch origin 978c3c7e254e5b6ad24fede7bd16729c44052ab0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fixtures
 * [new ref]         978c3c7e254e5b6ad24fede7bd16729c44052ab0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 978c3c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild