Hunspell Custom Dictionary by language

Hello.

I have added words to the Hunspell Custom Dictionary but now if I want a suggestion for a mispelled word, I get words from different languages. Trying to figure it out I found out that the custom dictionary is for all languages, not for a specific language. I can not find a way to add a custom dictionary that will work for a specific language, and do it automatically. A possible workaround would be to add and remove custom dictionaries for each language pair, but it is rather annoyong. The main Hunspell dictionary is for one single language, the target language, so it would be expected that customs dictionaries are also separated by languages. 

I hope my question is creal enough.

Please help. 

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