BUG: "Could not convert PHP value of type DateTime to type date_immutable" during ./flow site:import

[grebaldi]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When importing site contents from a Sites.xml file via ./flow site:import, the following exception occurs:

Exception #1300360480 in line 99 of [...]/Framework/Neos.Flow/Classes/ObjectManagement/DependencyInjection/DependencyProxy.php: Error: During import an exception occurred: "Could not convert PHP value of type DateTime to type date_immutable. Expected one of the following types: null, DateTimeImmutable".

This is due to

neos-development-collection/Neos.ContentRepository/Classes/Domain/Service/ImportExport/NodeImportService.php

Line 324 in ef53627

$dateValue = $this->propertyMapper->convert($stringValue, 'DateTime', $this->propertyMappingConfiguration);

When the Sites.xml contains <creationDateTime/> or <lastModificationDateTime/> elements, the property mapper is instructed to convert them to DateTime rather than DateTimeImmutable objects.

Expected Behavior

The importer should convert <creationDateTime/> , <lastModificationDateTime/> and any other date/time to \DateTimeImmuable rather than \DateTime.

Steps To Reproduce

Run ./flow site:import on a site export (presumably one that has been done with Neos 8.3 or earlier) in a Neos 8.4 setup. Make sure doctrine/dbal@3.* is installed. The error should show up in that environment.

Environment

- Flow: 8.4
- Neos: 8.4
- PHP: 8.2

I suspect the error didn't show prior to Neos/Flow 8.4, because of 8.4 pulling in `doctrine/dbal@3.*` rather than `doctrine/dbal@2.*`.

Anything else?

No response