$ git clone -n https://src.fedoraproject.org/rpms/check.git /var/lib/mock/f40-build-2339347-59648/root/chroot_tmpdir/scmroot/check
Cloning into '/var/lib/mock/f40-build-2339347-59648/root/chroot_tmpdir/scmroot/check'...
$ git fetch origin 4ba0a3202da6290b3b4b485e74a38dedb4604a7c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/check
 * [new ref]         4ba0a3202da6290b3b4b485e74a38dedb4604a7c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ba0a32 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild