remove linked studies from dropdown (Trello GsRYp6No)

GsRYp6No.sql

begin;

SELECT 
  id, 
  linked_study_id,
  folder_id
FROM studies 
WHERE 
  linked_study_id IS NOT NULL AND
  folder_id IS NOT NULL;

UPDATE
  studies 
SET 
  folder_id = null
WHERE   
  linked_study_id IS NOT NULL AND
  folder_id IS NOT NULL;


rollback;

Typo on line 7, 10, 18.

Did you test this? ;)

Nope, who needs tests??????