$ git clone -n https://src.fedoraproject.org/rpms/R-httpuv.git /var/lib/mock/f40-build-2053169-49087/root/chroot_tmpdir/scmroot/R-httpuv
Cloning into '/var/lib/mock/f40-build-2053169-49087/root/chroot_tmpdir/scmroot/R-httpuv'...
$ git fetch origin cfa57fc42f925b76e1167b7f52249c37edb9a0a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-httpuv
 * [new ref]         cfa57fc42f925b76e1167b7f52249c37edb9a0a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfa57fc Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild