Topic delimiter not used when splitting topic list

[falkolab]

I configured own delimiter according my task requirement. I saw in log the topics actually single string and not split to several topics.

Expected Behaviour

I expected to app doing according documentation but it doesn't.
I'd expect to see the topics delimited to according to configuration parameter topic_delimiter.

Current Behaviour

The only "," char used to split topics regardless value of topic_delimiter.

Possible Solution

You can se my PR here #26

Steps to Reproduce (for bugs)

Just change the configuration parameter topic_delimiter to something different from ","

Context

I need to set in configuration a custom delimiter

Your Environment

Doesn't make sense

Next steps

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