$ git clone -n https://src.fedoraproject.org/rpms/ongres-stringprep.git /var/lib/mock/f40-build-2518124-61734/root/chroot_tmpdir/scmroot/ongres-stringprep
Cloning into '/var/lib/mock/f40-build-2518124-61734/root/chroot_tmpdir/scmroot/ongres-stringprep'...
$ git fetch origin 6c7408b04b0d07e52965f225faca6fd032b4f78e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ongres-stringprep
 * [new ref]         6c7408b04b0d07e52965f225faca6fd032b4f78e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c7408b Move velocity-2 dependencies to codegenerator