OM Change Order Change Approval Notification Not Populating From User (Doc ID 738513.1)

Symptoms

-- Problem Statement:
On 12.0.4 in Production:
Find that the OM CHANGE ORDER Approval Notification is not populating the From User.

EXPECTED BEHAVIOR
Expect the Approval Notification to populate the From User.

-- Steps To Reproduce:
The issue can be reproduced at will with the following steps:
1. Open Sales Order
2. Select 'Actions -> Notifications'; Change Approval Notification
3. Enter message and (send) Responsibilities
4. Select 'Send'
5. Acknowledge confirmation message
6. Open WF Notifications from Navigator (OM Super User responsibility)
7. Select View: Message does not display.

Cause

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