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diff --git a/src/mailman/database/alembic/versions/51b7f92bd06c_initial.py b/src/mailman/database/alembic/versions/51b7f92bd06c_initial.py
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+++ b/src/mailman/database/alembic/versions/51b7f92bd06c_initial.py
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+# Copyright (C) 2014 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Initial migration.
+
+This empty migration file makes sure there is always an alembic_version
+in the database.  As a consequence, if the database version is reported
+as None, it means the database needs to be created from scratch with
+SQLAlchemy itself.
+
+It also removes schema items left over from Storm.
+
+Revision ID: 51b7f92bd06c
+Revises: None
+Create Date: 2014-10-10 09:53:35.624472
+"""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'downgrade',
+    'upgrade',
+    ]
+
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# Revision identifiers, used by Alembic.
+revision = '51b7f92bd06c'
+down_revision = None
+
+
+def upgrade():
+    op.drop_table('version')
+    if op.get_bind().dialect.name != 'sqlite':
+        # SQLite does not support dropping columns.
+        op.drop_column('mailinglist', 'acceptable_aliases_id')
+    op.create_index(op.f('ix_user__user_id'), 'user',
+                    ['_user_id'], unique=False)
+    op.drop_index('ix_user_user_id', table_name='user')
+
+
+def downgrade():
+    op.create_table('version')
+    op.create_index('ix_user_user_id', 'user', ['_user_id'], unique=False)
+    op.drop_index(op.f('ix_user__user_id'), table_name='user')
+    op.add_column(
+        'mailinglist',
+        sa.Column('acceptable_aliases_id', sa.INTEGER(), nullable=True))