Board Thread:Support Requests - Getting Technical/@comment-26203519-20170520015324/@comment-27345308-20170520041652

If you were editing in source mode, you would just have to copy the text somewhere else (like a text file) to save it for yourself. I'm not sure how other editors handle edit token mismatch but I think you wouldn't have many problems if you just left your browser open for these two weeks and then saved the edit afterwards.

You can also edit a User subpage of yours and then push the article to article namespace after you finish editing it.