When invoked by timer the return result is different from expected. This leads to incorrect configurations for build.

Steps:
Defive Grrovy script as:

return ["*","x","#","!","?","p","D"]

Run job manually (dont select any values). Actual/expected:  result value is empty string.
Run job by timer. Expected:  result value is empty string. Actual: value is equal to "*"

More details:
  1. I use Multiconfiguration (matrix) job
  2. I use  groovy sandbox
  3. Fallback script is empty
  4. Choise type == checkbox
  5. I dont use filtering function (Enable Filters == unchecked)
Jenkins version: 2.314
Plugin version - ? (I'm not admin)