Open Door Detection Trigger Fails

**Describe the bug**
The trigger isn't firing.

**To Reproduce**
`look <direction with open door>` and nothing happens.

**Expected behavior**

Open door set for direction's exit stub. 

**Environment (please complete the following information):**
 - discMapper Version: 0.5.0-beta/feature/door-mapping
 - Mudlet Version: 4.9.1
 - OS: win10