Comment 19 for bug 1821094

I tested this out without rebasing it to master. I loaded 100+ barcodes, and then edited 15 at a time. I'm seeing all changes show up simultaneously after a wait of around 1.5 seconds. Looks good on my end. I'll hold off on signing off because I don't have a lot of experience with backend performance testing, as was requested. Also I haven't tested the rebase.