Thread:PedroM/@comment-20302766-20130501211041/@comment-5028213-20130502125012

ref

I think your case is an exceptional one and the help page should not account for exceptions. There is far too much that can go wrong there. Your option is still referenced in the part "Aside from the rare case", so anybody clever enough to handle it should be able to get the message.

Also, even if the merged pages are similar, the resulting diff links from page history eventually will not show the actual change on the page, so you cannot make out actual contributors to the page.