Comment 9 for bug 2039609

Hah I just saw Terran's comment! Related, there are several commits which have no sign offs.

Other testing notes:

* I could not get Brief Record templates to do anything (local test VM and butternut). Maybe I'm expecting the wrong thing.

* Applying a brief record template as a default saves the value, but does not load the applied template on page reload.

* Invoice comboboxes show repeated options (e.g. "Paper" shows twice for if it's set on page load).

* Needs "ng lint --fix"

* For consistency, for blanket charges, the Billed and Paid amounts should be empty when creating a new invoice.

* Minor console error fix:

+++ b/Open-ILS/src/eg2/src/app/staff/acq/lineitem/brief-record.component.html
@@ -36,7 +36,7 @@
     <div class="flex-1">
       <button
         class="btn btn-secondary"
- [disabled]="selectedMARCTemplate.id == '__blank__'"
+ [disabled]="selectedMARCTemplate && selectedMARCTemplate.id == '__blank__'"
         (click)="setWSDefaultTemplate()" i18n>Set Default</button>
     </div>
   </div>