[Findit] Rerun if the regression range is different.

appengine/findit/model/crash/crash_analysis.py

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import hashlib
 import json
 import logging
 
 from google.appengine.ext import ndb
 
@@ skipping 13 matching lines @@
 
   # The signature of the crash.
   signature = ndb.StringProperty(indexed=False)
 
   # The platform of this crash.
   platform = ndb.StringProperty(indexed=False)
 
   # ID to differentiate different client.
   client_id = ndb.StringProperty(indexed=False)
 
+  # Chrome regression range.
+  regression_range = ndb.JsonProperty(indexed=False)
+
   ################### Properties for the analysis progress. ###################
 
   # The url path to the pipeline status page.
   pipeline_status_path = ndb.StringProperty(indexed=False)
 
   # The status of the analysis.
   status = ndb.IntegerProperty(
       default=analysis_status.PENDING, indexed=False)
 
   # When the analysis was requested.
@@ skipping 97 matching lines @@
     return ndb.Key(cls.__name__, hashlib.sha1(
         json.dumps(crash_identifiers, sort_keys=True)).hexdigest())
 
   @classmethod
   def Get(cls, crash_identifiers):
     return cls._CreateKey(crash_identifiers).get()
 
   @classmethod
   def Create(cls, crash_identifiers):
     return cls(key=cls._CreateKey(crash_identifiers))