$ git clone -n https://src.fedoraproject.org/rpms/R-fastmatch.git /var/lib/mock/f42-build-3264589-41245/root/chroot_tmpdir/scmroot/R-fastmatch
Cloning into '/var/lib/mock/f42-build-3264589-41245/root/chroot_tmpdir/scmroot/R-fastmatch'...
$ git fetch origin 9628d83282514b3967114bc745f58391879e6d38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-fastmatch
 * [new ref]         9628d83282514b3967114bc745f58391879e6d38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9628d83 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild