Last modified: 2014-02-20 21:23:22 UTC
ie. closing the window / tab in editing state.
Sorry, I don't consider this relevant. It's nice to have this feature (which, if the setting isn't removed along with so many other recently removed settings, can be disabled by the user) on wikitext pages since you can loose hours of work. In Wikidata you will never loose more than a few seconds of work. If we introduce this it will be annoying for many users and most probably needs an other setting separated from the users "wpuseeditwarning" setting. I don't think this is worth the trouble. I think this should be closed for now (or at least set to "low") and maybe reopened if the Wikidata editing interface is changed in a way you can loose more than a few seconds of work.