In transform method, now checks that the transformed exon is the same length as the original exon, returning undef if not (can happen when only part of the exon could be transformed)
In transform method, now checks that the transformed exon is the same
length as the original exon, returning undef if not (can happen when
only part of the exon could be transformed)

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