fix

src/server/service/page.js

@@ -105,7 +105,11 @@ class PageService {
       });
 
       newRevisions.push({
-        _id: revisionId, path: newPagePath, body: pathRevisionMapping[page.path].body, author: user._id, format: 'markdown',
+        _id: revisionId,
+        path: newPagePath,
+        body: pathRevisionMapping[page.path].body,
+        author: user._id,
+        format: 'markdown',
       });
 
     });