`??` has lower precedence than `!==`, so the expression:
triggerDisplayName ?? triggerUsername !== "Unknown"
parses as:
triggerDisplayName ?? (triggerUsername !== "Unknown")
When triggerDisplayName is an empty string "", the condition
evaluates to "" (falsy), incorrectly skipping the co-author line
even though the user is not "Unknown".
Add parentheses to get the intended behavior:
(triggerDisplayName ?? triggerUsername) !== "Unknown"
Co-authored-by: Rush <rush@RushdeMacBook-Pro.local>
