$ git clone -n https://src.fedoraproject.org/rpms/Maelstrom.git /var/lib/mock/f40-build-797452-141349/root/chroot_tmpdir/scmroot/Maelstrom
Cloning into '/var/lib/mock/f40-build-797452-141349/root/chroot_tmpdir/scmroot/Maelstrom'...
$ git fetch origin 5d902c12d6df52d5b7ab18483fe1cd55c76ffbe2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Maelstrom
 * [new ref]         5d902c12d6df52d5b7ab18483fe1cd55c76ffbe2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5d902c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild