$ git clone -n https://src.fedoraproject.org/rpms/kf5-kio.git /var/lib/mock/f45-build-14853-464/root/chroot_tmpdir/scmroot/kf5-kio
Cloning into '/var/lib/mock/f45-build-14853-464/root/chroot_tmpdir/scmroot/kf5-kio'...
$ git fetch origin 96640bbebb0ee392f8b54af6aca8459c413cca01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kio
 * [new ref]         96640bbebb0ee392f8b54af6aca8459c413cca01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96640bb Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild