[PR #10485] Removing an entity that is contained in a m2m association fails when flush() is called twice #12394

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admin · 2026-01-22T16:13:55+01:00

admin commented

2026-01-22 16:13:55 +01:00

Original Pull Request: https://github.com/doctrine/orm/pull/10485

State: closed
Merged: No

Here is a failing test for #10483.

When an entity is removed that is part of a many-to-many collection, that collection will be updated during the flush() operation to no longer contain the entity.

However, afterwards the collection will be in a dirty state and the internal snapshot still contains the removed entity.

That causes the collection to be processed again when flush() is called another time. This time, the ORM assumes the entity has been removed from the collection. It will try to build a DELETE operation but fails since the entity (from the snapshot) is no longer in the identity map.

The error message is Doctrine\ORM\EntityNotFoundException: Unable to find "..." entity identifier associated with the UnitOfWork.

**Original Pull Request:** https://github.com/doctrine/orm/pull/10485 **State:** closed **Merged:** No --- Here is a failing test for #10483. When an entity is removed that is part of a many-to-many collection, that collection will be updated during the `flush()` operation to no longer contain the entity. However, afterwards the collection will be in a dirty state and the internal snapshot still contains the removed entity. That causes the collection to be processed again when `flush()` is called another time. This time, the ORM assumes the entity has been removed from the collection. It will try to build a `DELETE` operation but fails since the entity (from the snapshot) is no longer in the identity map. The error message is `Doctrine\ORM\EntityNotFoundException: Unable to find "..." entity identifier associated with the UnitOfWork`.

admin added the pull-request label 2026-01-22 16:13:55 +01:00

admin closed this issue

2026-01-22 16:13:55 +01:00

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Reference: doctrine/archived-orm#12394

[PR #10485] Removing an entity that is contained in a m2m association fails when flush() is called twice #12394

[PR #10485] Removing an entity that is contained in a m2m association fails when `flush()` is called twice #12394