$ git clone -n https://src.fedoraproject.org/rpms/libvorbis.git /var/lib/mock/f45-build-17225-497/root/chroot_tmpdir/scmroot/libvorbis
Cloning into '/var/lib/mock/f45-build-17225-497/root/chroot_tmpdir/scmroot/libvorbis'...
$ git fetch origin e5544dddd37f085c638655ac80a0619b918f6204:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libvorbis
 * [new ref]         e5544dddd37f085c638655ac80a0619b918f6204 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5544dd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild