migrate.py install_labels - Equivalent constraint already exists

[TACIXAT]

neo4j.exceptions.ClientError: {code: Neo.ClientError.Schema.EquivalentSchemaRuleAlreadyExists} {message: An equivalent constraint already exists, 'Constraint( id=2, name='constraint_bd9158e1', type='UNIQUENESS', schema=(:Device {uid}), ownedIndex=1 )'.}

Get this when rerunning install_labels. What is the correct workflow for partial migrations when adding a new node class? I can do clear_neo4j but that drops all nodes as well.

Thanks!