Attempting to change a blueprint-locked item in a child course throws an error

[zachintosh]

[ { attribute: 'base',
          type: 'cannot change column(s): body - locked by Master Course',
          message: 'cannot change column(s): body - locked by Master Course' } ]

This is the error displayed. I don't think all parts of an item are locked when they are blueprint locked - possibly just the body or other properties. It might be nice to be able to check if the item is blueprint locked, or if the error is thrown, let the user know without throwing an error into their script.