$ git clone -n https://src.fedoraproject.org/rpms/python-fvs.git /var/lib/mock/f45-build-30791-647/root/chroot_tmpdir/scmroot/python-fvs
Cloning into '/var/lib/mock/f45-build-30791-647/root/chroot_tmpdir/scmroot/python-fvs'...
$ git fetch origin 4ed34d4dfdc282b4b14baf1834357a3a305c05ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-fvs
 * [new ref]         4ed34d4dfdc282b4b14baf1834357a3a305c05ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ed34d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild