$ git clone -n https://src.fedoraproject.org/rpms/robin-map.git /var/lib/mock/f43-build-3980848-52946/root/chroot_tmpdir/scmroot/robin-map
Cloning into '/var/lib/mock/f43-build-3980848-52946/root/chroot_tmpdir/scmroot/robin-map'...
$ git fetch origin aceb5b09a40fb4d1fa985a1b0d392f46383f189f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/robin-map
 * [new ref]         aceb5b09a40fb4d1fa985a1b0d392f46383f189f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aceb5b0 Increase the min cmake version to 3.5