$ git clone -n https://src.fedoraproject.org/rpms/sakura.git /var/lib/mock/f45-build-35572-696/root/chroot_tmpdir/scmroot/sakura
Cloning into '/var/lib/mock/f45-build-35572-696/root/chroot_tmpdir/scmroot/sakura'...
$ git fetch origin ed0dff5ff0c98572deb4d0c1c35335b024501eb7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sakura
 * [new ref]         ed0dff5ff0c98572deb4d0c1c35335b024501eb7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed0dff5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild