[dongeforever]

Make sure set the target branch to develop

What is the purpose of the change

Fix the bug in examineConsumeStats

Brief changelog

For static topics, the physical consumer offsets need to be translated to logic offsets, which is done in DefaultAdminExt.
But it does not handle the case when the topicQueueMapping is null, which means it is a normal topic.

Verifying this change

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[dongeforever]

@RongtongJin Please help a review.

[coveralls]

Coverage increased (+0.04%) to 47.227% when pulling 5600910 on dongeforever:fix_consumer_stats_beta into ef37465 on apache:5.0.0-beta.

[RongtongJin]

LGTM~