Fix #778 - Refreshing the editor on a remixed project causes loss of content
Fix #778 - Refreshing the editor on a remixed project causes loss of content

mozilla/thimble.mozilla.org,mozilla/thimble.mozilla.org,humphd/thimble.mozilla.org,humphd/thimble.mozilla.org,humphd/thimble.mozilla.org,mozilla/thimble.mozilla.org,mozilla/thimble.mozilla.org,humphd/thimble.mozilla.org