Disable embedded signatute verification during the perform upgrade command.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

HISTORY.rst

@@ -168,7 +168,7 @@
 - Most Docker Celery workers are now execute using a lower OS priority number.
 - Add COMMON_PRODUCTION_ERROR_LOGGING setting to control the logging of errors in production. Defaults to False.
 - Change the error log file handle class to RotatingFileHandle to avoid an indefinitely growing log file.
-
+- Disable embedded signatute verification during the perform upgrade command.
 
 2.7.3 (2017-09-11)
 ==================

mayan/apps/document_signatures/apps.py

@@ -12,14 +12,10 @@ from acls import ModelPermission
 from common import (
     MayanAppConfig, menu_facet, menu_object, menu_sidebar, menu_tools
 )
-from common.signals import post_upgrade
 from mayan.celery import app
 from navigation import SourceColumn
 
-from .handlers import (
-    unverify_key_signatures, verify_key_signatures,
-    verify_missing_embedded_signature
-)
+from .handlers import unverify_key_signatures, verify_key_signatures
 from .links import (
     link_all_document_version_signature_verify,
     link_document_signature_list,
@@ -165,10 +161,6 @@ class DocumentSignaturesApp(MayanAppConfig):
             dispatch_uid='unverify_key_signatures',
             sender=Key
         )
-        post_upgrade.connect(
-            verify_missing_embedded_signature,
-            dispatch_uid='verify_missing_embedded_signature',
-        )
         post_save.connect(
             verify_key_signatures,
             dispatch_uid='verify_key_signatures',