Format placeholder for episodes {year} not working

[bjoern-vh]

Hello,

I just tested and found that when renaming episodes, the {year} placeholder does not work. It's always empty.
For movies it is ok.

Example: --episode-format='{series[0]}/{series} ({year})/{series} - S{season:02}E{episode:02} - {title}.{extension}
=> expected: B/Better Call Saul (2015)/Better Call Saul - S01E01 - Title.mkv
=> result: B/Better Call Saul /Better Call Saul - S01E01 - Title.mkv

[msdos]

I think this would be a feature actually... in https://github.com/jkwill87/mnamer/wiki/Formatting it says that year is for media type Movie. Actually, I think this issue is a duplicate for #89.