planner: fix zero estimation result with tidb_enable_inl_join_inner_multi_pattern

[hawkingrei]

…

What problem does this PR solve?

Issue Number: close #58619

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

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@hawkingrei: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/check_dev	0aa11dc	link	true	/test check-dev
idc-jenkins-ci-tidb/check_dev_2	0aa11dc	link	true	/test check-dev2
idc-jenkins-ci-tidb/mysql-test	41a72a5	link	true	/test mysql-test

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