Github user astroshim commented on the issue:
https://github.com/apache/zeppelin/pull/919
@bzz Thank you for your detail review!
I was worring about changing tab size per interpreter as @Leemoonsoo
suggests is more hard to config than per notebook or per paragraph.
How about implementing per notebook first and then let's talk it's good or
bad?
and This changing is not affect to paragraphs of existing.
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