Do equivalent fix in Scan.grad() on other new input sequence.

theano/scan_module/scan_op.py

@@ -1581,7 +1581,15 @@ class Scan(PureOp):
             if not isinstance(x.type, DisconnectedType):
                 outer_inp_seqs.append(x[::-1])
 
-        outer_inp_seqs += [x[::-1] for x in self.outer_mitsot_outs(outs)]
+        if hasattr(inputs[0].tag, 'test_value'):
+            for x in self.outer_mitsot_outs(outs):
+                if hasattr(x[::-1][:inputs[0]].tag, 'test_value'):
+                    assert x[::-1][:inputs[0]].tag.test_value.shape[0] == inputs[0].tag.test_value
+            for x in self.outer_sitsot_outs(outs):
+                if hasattr(x[::-1][:-1].tag, 'test_value'):
+                    assert x[::-1][:-1].tag.test_value.shape[0] == inputs[0].tag.test_value
+        outer_inp_seqs += [x[::-1][:inputs[0]]
+                           for x in self.outer_mitsot_outs(outs)]
         outer_inp_seqs += [x[::-1][:-1] for x in self.outer_sitsot_outs(outs)]
         outer_inp_seqs += [x[::-1] for x in self.outer_nitsot_outs(outs)]