$ git clone -n https://src.fedoraproject.org/rpms/docbook-dtds.git /var/lib/mock/f40-build-2276798-55185/root/chroot_tmpdir/scmroot/docbook-dtds
Cloning into '/var/lib/mock/f40-build-2276798-55185/root/chroot_tmpdir/scmroot/docbook-dtds'...
$ git fetch origin 04fdfde52b17c01d2de5540294cb57a77f84d259:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/docbook-dtds
 * [new ref]         04fdfde52b17c01d2de5540294cb57a77f84d259 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 04fdfde Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild