BUG: Exception when reference the content of a document with reference editor

[crydotsnake]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

When I create a content reference with the reference editor, and confirm it, it throws an exception in the backend. I'm not sure if this bug is related to the issue: #3624

The log file is down below!

Expected Behavior

The content of the referenced document should be rendered as usual.

Steps To Reproduce

1. Install a fresh Neos Project
2. Change type: 'references' to: type: 'reference' in: Neos.NodeTypes.ContentReferences:ContentReferences (But you could also create your own NodeType of course)
3. Create a page with the Reference content element, and create a content reference off a document.

Environment

- Flow: 8
- Neos: 8
- PHP: 8.1

Anything else?

20221114165612d89ab5.txt

[crydotsnake]

I believe 🤞🏽 it is because the line:

neos-development-collection/Neos.Fusion/Classes/FusionObjects/MapImplementation.php

Line 87 in 7f1edd3

$collectionTotalCount = count($collection);

is no longer specific enough for PHP 8.0^. Because, when I try it in a Neos 7.1 project with PHP 7.4, it works fine.