$ git clone -n https://src.fedoraproject.org/rpms/jcal.git /var/lib/mock/f40-build-802610-144051/root/chroot_tmpdir/scmroot/jcal
Cloning into '/var/lib/mock/f40-build-802610-144051/root/chroot_tmpdir/scmroot/jcal'...
$ git fetch origin 670e8cddcd42402c8bdc712b20d76ff5f706ecc0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jcal
 * [new ref]         670e8cddcd42402c8bdc712b20d76ff5f706ecc0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 670e8cd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild