[ENG-10021] Handle multiple notification subscriptions in emit method#11536

cslzchen merged 3 commits intoCenterForOpenScience:hotfix/26.1.5CenterForOpenScience/osf.io:hotfix/26.1.5from

Ostap-Zherebetskyi:hotfix/multiple_subscriptionsOstap-Zherebetskyi/osf.io:hotfix/multiple_subscriptionsCopy head branch name to clipboard