CREATE MIGRATION m1xiilci36z6h4kris43l3gb6w63y7lbql3ismz7coxobr6r2yhz6a
    ONTO m1wantzc6ebph75s6s5oqd4yfcjul575mqmaas5g3ch77f3ojuwluq
{
  ALTER GLOBAL default::currentConversation USING (std::assert_single((SELECT
      default::Conversation
  FILTER
      ((.name = 'Default') AND (.user = GLOBAL default::currentUser))
  )));
};