Some invites are failing and giving 'Something went wrong' generic error

Summary

'Something went wrong' error is displayed intermittently within the invite modal

Steps to reproduce

1. Open the invite modal (in this case, I triggered it from Learn GitLab)
2. Type in the email address of the user you are looking to invite (in this case, I was attempting to invite pcordero+newuserdoesntexist09292023@gitlab.com and pcordero@gitlab.com)
3. Click 'Invite'

Example Project

• This bug was reproduced using this username team09292023trial
• Project Name: 09292023
• Project ID: 50828818

What is the current bug behavior?

Upon clicking 'Invite' a 'Something went wrong' error was displayed

Note:

• The invitation was sent as I got the invitation email
• And the user displayed in on the Project Members page

What is the expected correct behavior?

No error should appear if the invite went through successfully. If there is actually an error, a more helpful error message should display so a user understands what happened

Relevant logs and/or screenshots

requests capture(nothing showing incorrect):

• https://log.gprd.gitlab.net/app/r/s/2HOed
• https://log.gprd.gitlab.net/app/r/s/ZJI5x

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes