title: fake relationships in DataGrip
body: <p>I'm trying to create an ER diagram with DataGrip 2019.3 however I get duplication of relationships. Once a "false" relay is only based on keys (<code>t1_id:t1 id</code>) without any foreign keys being set at all, and after creating a foreign key the relation is already duplicated (<code>id:t2_id_fkey id</code>).</p>
  
  <p>I'm using PostgreSQL 12</p>
  
  <pre><code>CREATE TABLE public.t1
  (
      id integer NOT NULL,
      name character varying COLLATE pg_catalog."default",
      CONSTRAINT t1_pkey PRIMARY KEY (id)
  )
  
  CREATE TABLE public.t2
  (
      id integer NOT NULL,
      t1_id integer NOT NULL,
      namne character varying COLLATE pg_catalog."default",
      CONSTRAINT t2_pkey PRIMARY KEY (id),
      CONSTRAINT t2_id_fkey FOREIGN KEY (id)
          REFERENCES public.t1 (id) MATCH SIMPLE
          ON UPDATE NO ACTION
          ON DELETE NO ACTION
  )
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/TD6ju.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TD6ju.png" alt="ER diagram"></a></p>