$ git clone -n https://src.fedoraproject.org/rpms/resource-agents.git /var/lib/mock/f38-build-side-42-init-devel-647732-26439/root/chroot_tmpdir/scmroot/resource-agents
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-647732-26439/root/chroot_tmpdir/scmroot/resource-agents'...
$ git fetch origin d470e155860cd8f8ed44bda6ee3cd94a660309bd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/resource-agents
 * [new ref]         d470e155860cd8f8ed44bda6ee3cd94a660309bd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d470e15 - update sources