Merge MySQL 5.5.54

Registered by Laurynas Biveinis

https://github.com/percona/percona-server/pull/1256

Merge MySQL 5.5.54.

Verify upstream and revert our bugfixes:
- bug 1626002 / https://bugs.mysql.com/83073

Add testcases for: 76039 (missed in 5.5.49), 78230 (missed in 5.5.49), 80134 (missed in 5.5.50), 75943 (missed in 5.5.50), 81407 (missed in 5.5.51), 81409 (missed in 5.5.52), 81412 (missed in 5.5.49), 81447 (missed in 5.5.52), 81457 (missed in 5.5.52), 81471, 81495 (missed in 5.5.50)

Blueprint information

Status:
Complete
Approver:
Laurynas Biveinis
Priority:
Essential
Drafter:
Laurynas Biveinis
Direction:
Approved
Assignee:
Yura Sorokin
Definition:
Approved
Series goal:
Accepted for 5.5
Implementation:
Implemented
Milestone target:
milestone icon 5.5.54-38.6
Started by
Yura Sorokin
Completed by
Yura Sorokin

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