$ git clone -n https://src.fedoraproject.org/rpms/cdk.git /var/lib/mock/f40-build-2283461-55589/root/chroot_tmpdir/scmroot/cdk
Cloning into '/var/lib/mock/f40-build-2283461-55589/root/chroot_tmpdir/scmroot/cdk'...
$ git fetch origin a712ab28db403817a39c5d08ae4b3646d8371071:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cdk
 * [new ref]         a712ab28db403817a39c5d08ae4b3646d8371071 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a712ab2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild