Steps to reproduce :

• Open the script tool
• Launch a simple JCR query with the second argument to false

  Repository.query("//element(*, ametys:content)", false);

• You get the following error:

  ReferenceError: JCR is not defined
  	at  query(generated script:1356:44949-44951)
  	at  main(generated script:2:21-75)
  	at  :program(generated script:1757:60293-60298)
  [...]