Fix for NULL feature.gene_order

Issue Due to import hiccups, the gene_order field in theĀ features table could be set to null. Assessment To detect and assess the problem for a specific project, here is the SQL query in the MySQL console: SELECT o.id, count(f.id) FROM organisms o JOIN features f ON o.id=f.organism_id JOIN organisms_projects op ON o.id=op.organism_id JOIN projects p…