break-glass
You can prevent the Migration lambdas (snowflake-entity-create-db and aurora-entity-create-db) from reinitializing the old entities prior to running an update migration by setting the ENTITY_CREATOR_UPDATE_OMIT_REINIT_OLD flag on the environemnt
Set this in the deploymentFlags: ['ENTITY_CREATOR_UPDATE_OMIT_REINIT_OLD'], on the properties of your depot.Environment()
We discourage running this flag on a long-term basis.