Problem/Motivation
It looks for ::validateCardinality but if I inspect the callback I see [$this, 'validateCardinality'] (defined in FieldStorageConfigEditForm::getCardinalityForm()).
Steps to reproduce
Save an external entity field config.
FieldStorageConfigEditForm::validateCardinality() is called (and triggers errors in our external storage class because we don't handle deltas).
Proposed resolution
It should look for an array item containing validateCardinality.
Issue fork external_entities-3463731
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Comments
Comment #3
prudloff commentedComment #5
guignonvSame issue on 3.0.x. Tested patch and merged on 3.0.x. Thanks! I let v2 maintainers apply it to v2.
Comment #8
pefferen commentedThanks for the fix, added it to the 2.x branch now