Problem with filtering platforms by abbreviation

Hi :-)

I currently have a small problem: I want to filter the data set available on /platforms/ by abbreviation but for some reason that always results in a 500 error. Filtering by the name field works as expected. Is this a bug or is there perhaps a typo in my querystring?

/api/platforms/?sort=release_date%3Adesc&format=json&filter=abbreviation%3AWII&limit=100&offset=0&field_list=release_date%2Coriginal_price%2Cname%2Cabbreviation

Note that I've removed the api_key from this URL.

@zerok That was a bug. I committed a fix and should be in production later today.