[Webkit-unassigned] [Bug 28864] Setting document.title reuses <title>'s textnode child

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=28864

--- Comment #9 from Chris Dumez <cdumez at apple.com> ---
Looks like this still applies according to the latest specification:
- https://html.spec.whatwg.org/multipage/dom.html#document.title
- https://dom.spec.whatwg.org/#dom-node-textcontent

This is caused by the following "optimization" in HTMLTitleElement::setText():
    if (!value.isEmpty() && hasOneChild() && is<Text>(*firstChild())) {
        downcast<Text>(*firstChild()).setData(value);
        return;
    }

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