$ git clone -n https://src.fedoraproject.org/rpms/liblas.git /var/lib/mock/f42-build-862951-171273/root/chroot_tmpdir/scmroot/liblas
Cloning into '/var/lib/mock/f42-build-862951-171273/root/chroot_tmpdir/scmroot/liblas'...
$ git fetch origin e79c9ad376c369d760e9ce9f6f1c9e15d052958b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liblas
 * [new ref]         e79c9ad376c369d760e9ce9f6f1c9e15d052958b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e79c9ad Rebuild (GDAL)