Fixes #230

h/js/plugin/threading.coffee

@@ -21,7 +21,10 @@ class Annotator.Plugin.Threading extends Annotator.Plugin
     # Attach the thread to its parent, if any.
     if annotation.references?.length
       prev = annotation.references[annotation.references.length-1]
-      @annotator.threading.getContainer(prev).addChild thread
+      if annotation.created?
+        @annotator.threading.getContainer(prev).addChild thread
+      else
+        @annotator.threading.getContainer(prev).addChildToPos thread, 0
 
     # Expose the thread to the annotation
     Object.defineProperty annotation, 'thread',

h/lib/jwz.js

@@ -73,6 +73,12 @@
         return top;
       }
 
+      function addChildToPos(child, pos) {
+        if(child.parent) child.parent.removeChild(child);
+        this.children.splice(pos,0,child);
+        child.parent = this;
+      }
+
       function addChild(child) {
         if(child.parent) child.parent.removeChild(child);
         this.children.push(child);
@@ -104,6 +110,7 @@
         getSpecificChild: getSpecificChild,
         threadParent: threadParent,
         addChild: addChild,
+        addChildToPos: addChildToPos,
         removeChild: removeChild,
         hasDescendant: hasDescendant
       }