added sanity check and debug print
added sanity check and debug print

danstaines/ensembl,willmclaren/ensembl,muffato/ensembl,Ensembl/ensembl,mjg17/ensembl,danstaines/ensembl,willmclaren/ensembl,james-monkeyshines/ensembl,at7/ensembl,Ensembl/ensembl,at7/ensembl,muffato/ensembl,mjg17/ensembl,mjg17/ensembl,mjg17/ensembl,james-monkeyshines/ensembl,muffato/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,danstaines/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,muffato/ensembl,at7/ensembl,at7/ensembl