BUGFIX: Remove default value for subtreetags to fix MySQL support

[bwaidelich]

Fixes: #5252

[dlubitz]

I wonder if we need to check the string if empty, as this wouldn't be a valid JSON anymore by default.

neos-development-collection/Neos.ContentGraph.DoctrineDbalAdapter/src/Domain/Repository/NodeFactory.php

Line 80 in 9e8fd2c

self::extractNodeTagsFromJson($nodeRow['subtreetags']),

neos-development-collection/Neos.ContentGraph.DoctrineDbalAdapter/src/Domain/Repository/NodeFactory.php

Line 341 in 9e8fd2c

$subtreeTagsArray = json_decode($subtreeTagsJson, true, 512, JSON_THROW_ON_ERROR);

But I guess it's fine, as we ensure this in the projection:

neos-development-collection/Neos.ContentGraph.DoctrineDbalAdapter/src/Domain/Projection/HierarchyRelation.php

Line 48 in a0b6d26

$subtreeTagsJson = json_encode($this->subtreeTags, JSON_THROW_ON_ERROR | JSON_FORCE_OBJECT);

[bwaidelich]

I wonder if we need to check the string if empty, as this wouldn't be a valid JSON anymore by default.

I wondered the same, but the tests are green so ¯_(ツ)_/¯

[mhsdesign]

should we also add a test via this pr to ensure we dont break mysql again? :D

[bwaidelich]

should we also add a test via this pr to ensure we dont break mysql again?

Right. We already have tests, but we don't run them on MySQL – I had added that as a todo for #4337

[mhsdesign]

looks fine by reading but i didnt test *g