Index: roundup/cgi/actions.py
===================================================================
--- roundup/cgi/actions.py	(revision 143)
+++ roundup/cgi/actions.py	(working copy)
@@ -425,21 +425,15 @@
                     props = all_props[(linkcn, linkid)]
                     cl = self.db.classes[linkcn]
                     propdef = cl.getprops()[linkprop]
-                    if not props.has_key(linkprop):
-                        if linkid is None or linkid.startswith('-'):
-                            # linking to a new item
-                            if isinstance(propdef, hyperdb.Multilink):
-                                props[linkprop] = [newid]
+                    if isinstance(propdef, hyperdb.Multilink):
+                        if not props.has_key(linkprop):
+                            if linkid is None or linkid.startswith('-'):
+                                props[linkprop] = []
                             else:
-                                props[linkprop] = newid
-                        else:
-                            # linking to an existing item
-                            if isinstance(propdef, hyperdb.Multilink):
-                                existing = cl.get(linkid, linkprop)[:]
-                                existing.append(nodeid)
-                                props[linkprop] = existing
-                            else:
-                                props[linkprop] = newid
+                                props[linkprop] = cl.get(linkid, linkprop)[:]
+                        props[linkprop].append(newid)
+                    else:
+                        props[linkprop] = newid
 
         return '<br>'.join(m)