Gitlab omnibus backup create failing with error 'permission denied for schema gitlabhq_production'

Hi,
Recently we migrated from gitlab-ce-11.0.1 (mysql) to omnibus-gitlab-ce-11.0.1 (postgresql). The application is running fine and only the backup rake tasks sudo gitlab-rake gitlab:backup:create fails with the error:

gitlab:backup:create is failing with pg_dump: [archiver (db)] query failed: ERROR: permission denied for schema gitlabhq_production
pg_dump: [archiver (db)] query was: LOCK TABLE gitlabhq_production.abuse_reports IN ACCESS SHARE MODE [FAILED] rake aborted! Backup::Error: Backup failed

Its happening because the mysql to postgresql converter created wrong schema, which eventually created two rows instead of one row.

gitlabhq_production=# gitlabhq_production=# \dn+
                                       List of schemas
        Name         |    Owner    |       Access privileges        |      Description       
---------------------+-------------+--------------------------------+------------------------
 gitlabhq_production | gitlab-psql |                                | 
 public              | gitlab-psql | "gitlab-psql"=UC/"gitlab-psql"+| standard public schema
                     |             | =UC/"gitlab-psql"              | 
(2 rows)

It should like as shown below:

gitlabhq_production=# gitlabhq_production=# \dn+
                                List of schemas
  Name  |    Owner    |       Access privileges        |      Description       
--------+-------------+--------------------------------+------------------------
 public | gitlab-psql | "gitlab-psql"=UC/"gitlab-psql"+| standard public schema
        |             | =UC/"gitlab-psql"              | 
(1 row)

My question, is it safe to remove that first row ‘gitlabhq_production | gitlab-psql | …’ ?

Thank you.