Merge pull request #610 from bwilbertz/packed-reverse-copy

fix reverse/copy for packed problems

Author: lukaszkaiser

tensor2tensor/data_generators/problem.py

@@ -425,11 +425,22 @@ def maybe_reverse_features(self, feature_map):
       return
     inputs, targets = feature_map["inputs"], feature_map["targets"]
     feature_map["inputs"], feature_map["targets"] = targets, inputs
+    if "inputs_segmentation" in feature_map:
+      inputs, targets = feature_map["inputs_segmentation"], feature_map["targets_segmentation"]
+      feature_map["inputs_segmentation"], feature_map["targets_segmentation"] = targets, inputs
+    if "inputs_position" in feature_map:
+      inputs, targets = feature_map["inputs_position"], feature_map["targets_position"]
+      feature_map["inputs_position"], feature_map["targets_position"] = targets, inputs
+        
 
   def maybe_copy_features(self, feature_map):
     if not self._was_copy:
       return
     feature_map["targets"] = feature_map["inputs"]
+    if "inputs_segmentation" in feature_map:
+      feature_map["targets_segmentation"] = feature_map["inputs_segmentation"]      
+    if "inputs_position" in feature_map:
+      feature_map["targets_position"] = feature_map["inputs_position"]
 
   def dataset(self,
               mode,