MongoClient readPreferenceTags options parameter

[MarioCuljak]

Hi,
looks like when passing readPreferenceTags as $option parameter to MongoClient is interpreted as string of comma separated values. According to mongoclient.construct it should be array of strings.

Is it possible to support array format for readPreferenceTags?

[alcaeus]

Quoting #290 (comment):

1.2.2 is the last planned release for this library, and I will only accept fixes for critical bugs (those causing security issues or data loss) from this point onwards.

If you are able to produce a pull request that includes a test for this, I can consider merging it if CI is stable. However, main suggestion would be to realise that the driver API you're relying on hasn't been updated in almost 6 years and was designed with compatibility for MongoDB 3.4. It's dead, Jim.

[MarioCuljak]

Thanks for feedback, I'll try to make PR in following days.