[patch] to bug 82243 (not 88243)

[Paul Temple]

Germain Garand wrote:
> mmh, right the parser uses the faster addChild...
> append/replace are used in some places, but from what I can
> see it's fine to close the node automatically in those cases.

I can use closeRenderer() instead of close(), that fixes bug 
82243, too. Is that better? And if so, should I adjust the
    if (newChild->closed())
?