Make 'drop the _R0' the default option
Make 'drop the _R0' the default option

but make it reasonably strict, so check for consecutive ids.

ewels/NGI-RNAseq,ewels/NGI-RNAseq,ewels/NGI-RNAseq,ewels/NGI-RNAseq,ewels/NGI-RNAseq