diff --git a/django/contrib/admin/options.py b/django/contrib/admin/options.py
index f29c6a7299..d4b3d4de0e 100644
--- a/django/contrib/admin/options.py
+++ b/django/contrib/admin/options.py
@@ -665,6 +665,7 @@ class ModelAdmin(BaseModelAdmin):
         changelist; it returns an HttpResponse if the action was handled, and
         None otherwise.
         """
+
         # There can be multiple action forms on the page (at the top
         # and bottom of the change list, for example). Get the action
         # whose button was pushed.
@@ -916,9 +917,9 @@ class ModelAdmin(BaseModelAdmin):
             return HttpResponseRedirect(request.path + '?' + ERROR_FLAG + '=1')
 
         # If the request was POSTed, this might be a bulk action or a bulk edit.
-        # Try to look up an action first, but if this isn't an action the POST
-        # will fall through to the bulk edit check, below.
-        if actions and request.method == 'POST':
+        # Try to look up an action or confirmation first, but if this isn't an
+        # action the POST will fall through to the bulk edit check, below.
+        if actions and request.method == 'POST' and (helpers.ACTION_CHECKBOX_NAME in request.POST or 'index' in request.POST):
             response = self.response_action(request, queryset=cl.get_query_set())
             if response:
                 return response
diff --git a/tests/regressiontests/admin_views/tests.py b/tests/regressiontests/admin_views/tests.py
index 756cb18f4d..129f93cdac 100644
--- a/tests/regressiontests/admin_views/tests.py
+++ b/tests/regressiontests/admin_views/tests.py
@@ -1025,6 +1025,28 @@ class AdminViewListEditable(TestCase):
         # 1 select per object = 3 selects
         self.failUnlessEqual(response.content.count("<select"), 4)
 
+    def test_post_messages(self):
+        # Ticket 12707: Saving inline editable should not show admin
+        # action warnings
+        data = {
+            "form-TOTAL_FORMS": "3",
+            "form-INITIAL_FORMS": "3",
+            "form-MAX_NUM_FORMS": "0",
+
+            "form-0-gender": "1",
+            "form-0-id": "1",
+
+            "form-1-gender": "2",
+            "form-1-id": "2",
+
+            "form-2-alive": "checked",
+            "form-2-gender": "1",
+            "form-2-id": "3",
+        }
+        response = self.client.post('/test_admin/admin/admin_views/person/',
+                                    data, follow=True)
+        self.assertEqual(len(response.context['messages']), 1)
+
     def test_post_submission(self):
         data = {
             "form-TOTAL_FORMS": "3",
@@ -1265,7 +1287,6 @@ class AdminActionsTest(TestCase):
         delete_confirmation_data = {
             ACTION_CHECKBOX_NAME: [1, 2],
             'action' : 'delete_selected',
-            'index': 0,
             'post': 'yes',
         }
         confirmation = self.client.post('/test_admin/admin/admin_views/subscriber/', action_data)