Created attachment 321553 [details] [diff] [review] patch nsXULListitemAccessible::GetListAccessible() pass nsIDOMXULSelectControlElement to GetAccessibleInWeakShell without quering to nsIDOMNode, it leads to assertion NS_ASSERTION(query_result.get() == mRawPtr, "QueryInterface needed"); inside nsCOMPtr.h file. This assertion makes hard to debug some code.
Comment on attachment 321553 [details] [diff] [review] patch r=me
could we nominate it for landing? It's obviously plain patch, without any risk and helps with debugging.
Pushed to mozilla-central in changeset: http://hg.mozilla.org/mozilla-central/index.cgi/rev/071937b753b5