Moved initialize call to before attach_das, because you can't attach DAS to an empty tree
Moved initialize call to before attach_das, because you can't attach DAS to an empty tree

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