Avoid calling slice->is_circular when there is no slice. Required for ProteinFeatures which cannot have a slice.
Avoid calling slice->is_circular when there is no slice. Required for ProteinFeatures which cannot have a slice.

Ensembl/ensembl,muffato/ensembl,muffato/ensembl,Ensembl/ensembl,Ensembl/ensembl,Ensembl/ensembl,muffato/ensembl,james-monkeyshines/ensembl,muffato/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl