fixed masked spliced seq for reverse strand
fixed masked spliced seq for reverse strand

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