Preserve caller urls after authentication

[mabullo]

Is your feature request related to a problem? Please describe.
If I email a link to a record on a CRM module the recipient if he is already logged in and clicks on the link, he is correctly taken to the desired record. If, however, he is not logged in he bumps into the login form, if the user correctly authenticates with the office365/azure authentication feature of the plugin, then the initial url is lost depending on the return url set.
If, on the other hand, one logs in with the SuiteCRM credentials, one correctly goes to the record pointed to by the link.

Describe the solution you'd like
If the caller url is different from the return url use the initial caller url after authentication

Describe alternatives you've considered
Ho considerato di usare la sessione di php ma dopo l'autenticazione viene pulita di eventuali injection