fix #2158 - denormalize items without context and no Iri

[rpanfili]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets	#2158
License	MIT
Doc PR	-

This PR fix an issue when context does not contain the resource_class key.

It's the same behaviour of the AbstractItemNormalizer that inherit that option from the $class parameter before calling the parent::denormalize method. It actually has to be applied before try to update the object with updateObjectToPopulate method otherwise, if we are not using an IRI @id but only the object identifier, we got an

[ErrorException]
  Notice: Undefined index: resource_class

This is very useful using Symfony Messenger with Api-platform since otherwise Entity normalizer fails to denormalize object and we are not able to consume messages.

[soyuka]

Does #2326 fix your issue?

[rpanfili]

Does #2326 fix your issue?

@soyuka in my specific use case (Messenger messages consumption) it works but that solution skips IRI composition (using the "guessed" class) and object population that can happens in updateObjectToPopulate as I tried to reproduce with the unit test case. Also the logger warning (maybe better a notice instead) it's a bit too much in my opinion since it's something that the parent class would normally manage without triggering any message.

[dunglas]

Thanks for contributing @rpanfili! We finally merged #2326 that fixes the same issue.