Fix quality "BR-Rip" in file name is not found

If you had the quality tag in the rename string a movie got renamed for example "Movie.Name.BR-Rip.avi".
During quality guessing this filename got split up into "movie, name, br, rip, avi" and therefore no identifier string could be found in the file name. This then led to loose guessing using metadata, which mostly ended up in a DVD-Rip quality because of the resolution.

In the library, this issue caused a BR-Rip status marked as 'downloaded' and in parallel a DVD-Rip status marked as 'done'.