Transition button doesn't comment on ticket

If you have a comment restriction for rules like "Transition on comment" and a "Alert user", the "Ready For Support" and "Respond to Customer" buttons won't trigger the Alert.

Steps tro Reproduce

1. Create a new user and add it to a GroupX, for example;

2. Create the first Automation Rule:
Transition on comment
When Issue Commented if Status = "Waiting for Support" and "Customer Request Type" is not empty and comment is public and user is not a customer then Transition to Respond to Customer
Else if Status = "Waiting for Customer" and "Customer Request Type" is not empty and comment is public and user is a customer then Transition to Ready for Support

3. Create the second custom Automation Rule:
When Issue Commented if status in ("Waiting for Support", "Waiting for Customer") and reporter in (membersOf(GroupX)) and comment is internal Then Alert Users xx

4. Create a ticket through customer portal with the user recently created.
5. Use an Agent to Respond to customer with an internal comment.

Expected behaviour
The issue is transitioned, an internal comment is posted and an Alert will be triggered.

Current Behaviour
The issue is transitioned with an internal comment, but with no Alert triggered.

JIRA Service Desk v3.1.0-OD-12-001-D20160118T065214