=== modified file 'openerp/controllers/openo2m.py'
--- openerp/controllers/openo2m.py	2010-09-27 07:40:54 +0000
+++ openerp/controllers/openo2m.py	2010-10-15 12:46:18 +0000
@@ -59,6 +59,15 @@
         params.view_mode = ['form', 'tree']
         params.view_type = 'form'
         
+        #FIX _terp_ids in nested o2m's
+        depth_o2m = params.o2m.split('/')
+        current_dict = params.view_params
+        
+        for o2m in depth_o2m :
+            current_dict = current_dict[o2m]
+        
+        current_o2m_ids = current_dict.ids
+        
         #XXX: dirty hack to fix bug #401700
         if not params.get('_terp_view_ids'):
             params['_terp_view_ids'] = []
@@ -107,7 +116,8 @@
                                 tw.form.Hidden(name='_terp_o2m_model', default=params.o2m_model),
                                 tw.form.Hidden(name='_terp_o2m_context', default=ustr(params.o2m_context or {})),
                                 tw.form.Hidden(name=params.prefix + '/__id', default=params.id or None)] + hiddens
-
+        
+        params.ids = current_o2m_ids        
         form = tw.form_view.ViewForm(params, name="view_form", action="/openo2m/save")
         form.screen.string = wid.screen.string
         

=== modified file 'openerp/static/javascript/form.js'
--- openerp/static/javascript/form.js	2010-10-15 09:13:43 +0000
+++ openerp/static/javascript/form.js	2010-10-15 13:02:33 +0000
@@ -693,7 +693,6 @@
     params['_terp_context'] = options.context;
     params['_terp_prefix'] = prefix;    
     params['_terp_active_id'] = prefix ? $(prefix + '/_terp_id').value : $('_terp_id').value;
-    params['_terp_active_ids'] = prefix ? $(prefix + '/_terp_ids').value : $('_terp_ids').value;
     
     if (options.active_id) {
         params['_terp_active_id'] = options.active_id;
@@ -917,7 +916,9 @@
         var id = eval(params['_terp_selection'])[0]
     }
 	else{
-    	var id = $(field).value;}
+    	var id = $(field).value;
+    	params['_terp_selection'] = '[' + id + ']';
+	}
     	
     var domain = getNodeAttribute(src, 'domain');
     var context = getNodeAttribute(src, 'context');