Fansub descriptor brackets like [Multiple Subtitle] or [Dual Audio]
were being misread as release group names because their individual
words didn't match any known metadata pattern. This caused a bogus
tag to be stacked in front of files that already carried their own
[Group] prefix (e.g. Erai-raws releases).
- Recognize common multi-word fansub descriptors (Multi(ple) Sub(s),
Dual/Multi Audio, Hard/Soft sub, Uncensored/Batch/Complete, etc.)
as metadata via whole-phrase matching in IsMetadataBracket.
- Never prepend a derived release tag when the file's own filename
already starts with a different bracket prefix, preventing any
tag from being stacked on top of an existing one.
l4kr
3903fd475a