Incompatibility with Doctrine/ORM 2.16 / 2.17

[alexander-schranz]

Q	A
Sulu Version	2.4.14 , 2.5.10
PHP Version	-
DB Version	-
Browser Version	-

Actual Behavior

Currently there are some blocking doctrine/orm issues which let our own tests and also projects run into issues.

• Identity Map issue since 2.16.0 upgrade doctrine/orm#10867
• Safeguard for identity map seems to break merge doctrine/orm#10820
• Creation order parent-children inversed doctrine/orm#10864 (fixed in 2.17.3: Avoid an inconsistency in topological sort result order doctrine/orm#11086)
• 2.16.0 - Issue with persisting entities doctrine/orm#10869

Currently we will conflict doctrine/orm 2.16.0 completely in: #7141

Expected Behavior

The target of this issue is that we focus on extending doctrine/orm packages with more tests which target our different use cases of doctrine:

• custom timestamp and user blame listener work like expected
• more tests using resolveTargetListener
• tests for flush in a postPersist event
• tests for gedmo tree extensions initializing all listeners

Steps to Reproduce

This is also something which would already help if we have smaller reproducer for the issues above. I tried to start with but could not yet finish it, not sure if others did yet create reproducers for the issues:

https://github.com/alexander-schranz/reproducer-doctrine-orm-issue-10869/

[alexander-schranz]

the doctrine issues seems to be fixed and so again allow newer doctrine versions: #7255. So sulu installations already using doctrine/orm 2.16 get also again the latest sulu releases and are not blocked on older versions.