$ git clone -n https://src.fedoraproject.org/rpms/R-fastmatch.git /var/lib/mock/f40-build-789381-135728/root/chroot_tmpdir/scmroot/R-fastmatch
Cloning into '/var/lib/mock/f40-build-789381-135728/root/chroot_tmpdir/scmroot/R-fastmatch'...
$ git fetch origin afd0faa27605a5a2fdd1a175c068d1be48d86095:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-fastmatch
 * [new ref]         afd0faa27605a5a2fdd1a175c068d1be48d86095 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afd0faa Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild