Comment 31 for bug 184547

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In , L. David Baron (dbaron) wrote :

So, to somebody who does have the setup to debug this: I'd say the first thing to look at would be this assertion:

> ###!!! ASSERTION: Unmatched begin/end?: '!mOldRuleTree', file nsStyleSet.cpp,
> line 107

Are there in fact unmatched calls to nsStyleSet::BeginReconstruct and nsStyleSet::EndReconstruct? (They should always be matched, and should never be nested... really the assertion text should be complaining about "unmatched or nested begin/end".)

If so, what are the stacks that show how we're ending up with unmatched (the stack of the begin that has no end) or nested (the stack of both begins) calls?