$ git clone -n https://src.fedoraproject.org/rpms/c4log.git /var/lib/mock/f41-build-848207-164387/root/chroot_tmpdir/scmroot/c4log
Cloning into '/var/lib/mock/f41-build-848207-164387/root/chroot_tmpdir/scmroot/c4log'...
$ git fetch origin 535dc0ac27d93d9798ac659b19cf690e19bc5489:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/c4log
 * [new ref]         535dc0ac27d93d9798ac659b19cf690e19bc5489 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 535dc0a Build as C++14 to match the rapidyaml package