Array ref bug fix.
Array ref bug fix.

Ensembl/ensembl-analysis,james-monkeyshines/ensembl-analysis,Ensembl/ensembl-analysis,kiwiroy/ensembl-analysis,james-monkeyshines/ensembl-analysis,kiwiroy/ensembl-analysis,james-monkeyshines/ensembl-analysis,Ensembl/ensembl-analysis