$ git clone -n https://src.fedoraproject.org/rpms/pcl.git /var/lib/mock/f40-build-2180102-51101/root/chroot_tmpdir/scmroot/pcl
Cloning into '/var/lib/mock/f40-build-2180102-51101/root/chroot_tmpdir/scmroot/pcl'...
$ git fetch origin 03e3744c64e2ad8fadd0d841332fda1cadea682d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcl
 * [new ref]         03e3744c64e2ad8fadd0d841332fda1cadea682d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03e3744 Drop requires on openni-devel for i686 as well