Fix the nondurable consumer can not specify the initial position (#7702)

Fixes #7619

Motivation

When using nondurable consumer to consumer message and specify the initial position
from earliest, the consumer can not start consume from the earliest message.
2 files changed
tree: c73b7b98aaa3b7d37d43e0dc87e642597a819266
  1. distribution/
  2. docker/
  3. tests/