Virtual host vhost does not exist (bug since 2018)

[ghost]

rabbitmq_user is broken. It works the first time to create a user, but any other re-runs generate an error. This is an old bug from 2018, with a fix that was never merged, please see the full bug report:

ansible/ansible#48890

lots of other bug reports about this issue:

ansible/ansible#67572
ansible/ansible#66421
ansible/ansible#49978

I've just hit this error myself with ansible 2.9.

Thank you.

[aderixon]

This was fixed in #34

[CSimpiFoN]

Probably this is another reason happening again, but Ansible 5.5.0 with RabbitMQ 3.9.14 is dropping the same error.
"Error:", "Virtual host vhost does not exist"

The code has the change mentioned in #34