[Webkit-unassigned] [Bug 276828] Avoid <mo> invalidation for valid MathMLFractionElement/MathMLScriptsElement

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=276828

Frédéric Wang (:fredw) <fred.wang at free.fr> changed:

           What    |Removed                     |Added
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                 CC|                            |fred.wang at free.fr

--- Comment #2 from Frédéric Wang (:fredw) <fred.wang at free.fr> ---
Just to clarify here there are two concept of "invalid":

- calling setOperatorFormDirty() on mo children to make sure their properties are properly recomputed.

- invalid MathML elements i.e. they don't have the expected number of in-flow children (e.g. numerator and denominator for mfrac).

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