$ git clone -n https://src.fedoraproject.org/rpms/links.git /var/lib/mock/f40-build-2295931-56352/root/chroot_tmpdir/scmroot/links
Cloning into '/var/lib/mock/f40-build-2295931-56352/root/chroot_tmpdir/scmroot/links'...
$ git fetch origin 49b7a16f6016e23f837fdea90e9a31b36516915c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/links
 * [new ref]         49b7a16f6016e23f837fdea90e9a31b36516915c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49b7a16 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild