$ git clone -n https://src.fedoraproject.org/rpms/darkhttpd.git /var/lib/mock/f39-build-1591933-38304/root/chroot_tmpdir/scmroot/darkhttpd
Cloning into '/var/lib/mock/f39-build-1591933-38304/root/chroot_tmpdir/scmroot/darkhttpd'...
$ git fetch origin 4c444ae8418813f0af22d0c254bd5f51718cf357:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/darkhttpd
 * [new ref]         4c444ae8418813f0af22d0c254bd5f51718cf357 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c444ae Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild