empty author should be allowed to support clearAuthorship functionality

1 files changed, 2 insertions, 1 deletions

diff --git a/src/node/handler/PadMessageHandler.js b/src/node/handler/PadMessageHandler.js
index ab81ad87..ef8e32b0 100644
--- a/src/node/handler/PadMessageHandler.js
+++ b/src/node/handler/PadMessageHandler.js
@@ -665,7 +665,8 @@ function handleUserChanges(data, cb)
             if(!attr) return
             attr = wireApool.getAttrib(attr)
             if(!attr) return
-            if('author' == attr[0] && attr[1] != thisSession.author) throw new Error("Trying to submit changes as another author in changeset "+changeset);
+            //the empty author is used in the clearAuthorship functionality so this should be the only exception
+            if('author' == attr[0] && (attr[1] != thisSession.author && attr[1] != '')) throw new Error("Trying to submit changes as another author in changeset "+changeset);
           })
         }