409 error still occurs when creating a shared wallet

[louilinn]

Describe the bug
If you have created a wallet (personal or shared) and then changed the name using edit profile, and you try to create a new shared wallet in your account with the old name it gives you the 409 error.

To Reproduce
Steps to reproduce the behavior:

1. Change the name of a SW and save the old name
2. Create a new wallet with the old name
3. See 409 error

Expected behavior
Either we catch this error saying you have used this name before, please use another name. You can change the name later on using edit profile.
Or we find a way to generate nonce so that it is not deterministic on name.

[louilinn]

Related: #279 (previously resolved)