$ git clone -n https://src.fedoraproject.org/rpms/kirc.git /var/lib/mock/f40-build-2292899-56166/root/chroot_tmpdir/scmroot/kirc
Cloning into '/var/lib/mock/f40-build-2292899-56166/root/chroot_tmpdir/scmroot/kirc'...
$ git fetch origin 6d16b729db4eec14dbc500b270a730ad99cb336e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kirc
 * [new ref]         6d16b729db4eec14dbc500b270a730ad99cb336e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d16b72 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild