mattdrayer/MCKIN-2988: Added stop to backwards data migration.

ac3c0438 · Matt Drayer · Jonathan Piacenti · f6e236a5 · ac3c0438
Commit ac3c0438 authored Feb 11, 2015 by Matt Drayer Committed by Jonathan Piacenti Aug 20, 2015
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lms/djangoapps/progress/migrations/0003_move_cmc_data.py
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--- a/lms/djangoapps/progress/migrations/0003_move_cmc_data.py
+++ b/lms/djangoapps/progress/migrations/0003_move_cmc_data.py
@@ -35,7 +35,7 @@ class Migration(DataMigration):

    def backwards(self, orm):
        "Write your backwards methods here."
-        pass
+        raise RuntimeError("Cannot reverse data migration at this time.")

    models = {
        'auth.group': {