|  | @@ -74,6 +74,9 @@ def upgrade():
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			| 74 | 74 |                      existing_type=sa.VARCHAR(length=32),
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			| 75 | 75 |                      nullable=False,
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			| 76 | 76 |                      server_default='')
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			|  | 77 | +    op.alter_column('content_revisions', 'owner_id',
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			|  | 78 | +                    existing_type=sa.INTEGER(),
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			|  | 79 | +                    nullable=False)
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			| 77 | 80 |      op.alter_column('content_revisions', 'status',
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			| 78 | 81 |                      existing_type=sa.VARCHAR(length=32),
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			| 79 | 82 |                      nullable=False,
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			|  | @@ -153,6 +156,9 @@ def downgrade():
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			| 153 | 156 |      op.alter_column('content_revisions', 'revision_type',
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			| 154 | 157 |                      existing_type=sa.VARCHAR(length=32),
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			| 155 | 158 |                      nullable=True)
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			|  | 159 | +    op.alter_column('content_revisions', 'owner_id',
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			|  | 160 | +                    existing_type=sa.INTEGER(),
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			|  | 161 | +                    nullable=True)
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			| 156 | 162 |      op.alter_column('content_revisions', 'properties',
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			| 157 | 163 |                      existing_type=sa.TEXT(),
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			| 158 | 164 |                      nullable=True)
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