Note that the warning was due to the fact that you tried to disambiguate by performing a cut & paste move, which separated the article from its contributor history for no good reason. A simple use of the movecommand would have served your purpose equally well with less efforts ) I have performed a history merge to re-join the history with the article and created a proper disambiguation page at Water cure.
If a similar case ever presents itself, please try to avoid copy / pasting entire articles under a new title in favour of using "Move", as the former may lead to the loss of the contribution history if the original page gets deleted, a loss that would constitute a violation of the copyrights of all contributors to the article. If in doubt, you can also ask for assistance at WP:Requested moves.
Best,