Only list self-alignments with haplotypes/patches
Only list self-alignments with haplotypes/patches

Since Compara now has in the same dataset human self-alignments for
chromosomes, unplaced contigs, and haplotypes, we cannot rely simply
on the method_link_type (previously != "ucsc").
Instead, we need to select the alignment blocks that contain a non-primary
region (is_reference=0)

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode