No Mail sent when creating user with "node create-user"

[tgotowik]

Steps to Reproduce

1. run ./bin/shell overleaf
2. Change into the scripts directory: cd /overleaf/services/web/modules/server-ce-scripts/scripts
3. Create user: node create-user --email=joe@example.com"

Expected Behaviour

A user should be creted and a mail with an activation URL should be sent to joe@example.com

Observed Behaviour

There is no email sent.

Technical Info

Overleaf version: 5.0.1

Hotfix

Assumption: Since the creation of the user happens asynchronously, the node process dies before it has created the user or sent the mail

1. run ./bin/shell overleaf
2. Edit: /overleaf/services/web/app/src/Features/User/UserRegistrationHandler.js:
   change line 117 from
   EmailHandler.promises.sendEmail('registered', {
   to:
   await EmailHandler.promises.sendEmail('registered', {
3. exit the container: exit
4. commit changes: docker commit overleaf overleaf/overleaf