Error: Call to a member function getFromSid() on null

Problem/Motivation

If creating a new entity, it returns Error: Call to a member function getFromSid() on null in _workflow_notifications_get_transition_details()

Proposed resolution

I added the following code to _workflow_notifications_get_transition_details at line 44 to fix

// Continue if the transition is null
    if (!$transition) {
      continue;
    }