If you are working on a page in a particular working copy, and one of your colleagues edits the same page in a different working copy and publishes it, you may, in rare cases, have to deal with intermediate changes to the same content.
Scrivito indicates conflicting changes to content by means of notifications in the sidebar. In case a conflict exists, the top menu includes an item for overriding the changes that were published in the meantime. Please complete reading this article before selecting the “Override published changes” option.