editing/deleting/merge-whitespace-pre.html shows this. It started failing after hyatt's changes, but he says that the prune() in moveParagraph is removing rendered content, so I need to work on this.
Created attachment 7968 [details] patch
Comment on attachment 7968 [details] patch Why the check for canHaveChildren?
> Why the check for canHaveChildren? If the node passed to prune is a rendered leaf, like some text or an image, it will be removed and its parent's pruned without the !renderer->canHaveChildren() check.
"its parents pruned"
Comment on attachment 7968 [details] patch r=me
fixed in r1669