VisualEditor: newFromWrap() should perform validation
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Description currently doesn't check that the transaction it generates will be valid. That is, it will ensure that things are unwrapped correctly, but it doesn't check that the result doesn't end up violating parent/child restrictions.

It's not entirely clear to me whether we should try to rectify that or throw an exception, but either of those is better than generating a transaction that, when applied, will make the document nonconformant.

Version: unspecified
Severity: enhancement



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