PLAT-1916 Ignore existing usage of deprecated field_data

cms/envs/common.py

@@ -132,7 +132,6 @@ from lms.envs.common import (
     _make_locale_paths,
 )
 from path import Path as path
-from warnings import simplefilter
 
 from lms.djangoapps.lms_xblock.mixin import LmsBlockMixin
 from cms.lib.xblock.authoring_mixin import AuthoringMixin
@@ -441,11 +440,6 @@ XQUEUE_INTERFACE = {
     'basic_auth': None,
 }
 
-################################# Deprecation warnings #####################
-
-# Ignore deprecation warnings (so we don't clutter Jenkins builds/production)
-simplefilter('ignore')
-
 ################################# Middleware ###################################
 
 # TODO: Remove Django 1.11 upgrade shim

cms/pytest.ini

@@ -2,10 +2,12 @@
 DJANGO_SETTINGS_MODULE = cms.envs.test
 addopts = --nomigrations --reuse-db --durations=20 -p no:randomly
 # Enable default handling for all warnings, including those that are ignored by default;
-# but hide rate-limit warnings, because we deliberately don't throttle test user logins
+# but hide rate-limit warnings (because we deliberately don't throttle test user logins)
+# and field_data deprecation warnings (because fixing them requires a major low-priority refactoring)
 filterwarnings =
     default
     ignore:No request passed to the backend, unable to rate-limit:UserWarning
+    ignore::xblock.exceptions.FieldDataDeprecationWarning
 norecursedirs = envs
 python_classes =
 python_files = tests.py test_*.py *_tests.py