[9.x] fix pdo exception when rollbacking without active transaction #46017
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This may fix:
I also note there is failing tests about dead lock not retried, but the assertion seems not about dead lock: it is just an attempt to commit without an existing pending transaction (which in my opinion is not related). Not sure if these tests should be refined. |
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This PR prevents an issue when trying to rollback when there is no active database transaction.
I faced this issue when I converted my tests suites (which uses
LazilyRefreshDatabasetrait) from SQLite (in memory) to MySQL, which seems to behave differently regarding the transaction verification (SQLite is more permissive).