Sign in tokens enabled in context multitenancy fails registration, authentication

[carlgleisner]

Describe the bug Having sign_in_tokens_enabled? set to true in a context multitenancy setup causes registration and authentication to fail.

To Reproduce Please see this reproduction repo.

Expected behavior Expected the authentication to complete successfully.

Runtime

• Elixir 1.16.1
• Erlang/OTP 26
• macOS Sonoma (Darwin 23.4.0)
• ash 3.0.0-rc.21
• ash_authentication 4.0.0-rc.6
• ash_authentication_phoenix 2.0.0-rc.2
• ash_phoenix 2.0.0-rc.4
• ash_postgres 2.0.0-rc.7

Additional context

[warning] Unhandled error in form submission for MyApp.Accounts.User.sign_in_with_password

This error was unhandled because Ash.Error.Invalid.TenantRequired does not implement the `AshPhoenix.FormData.Error` protocol.

** (Ash.Error.Invalid.TenantRequired) Queries against the MyApp.Accounts.User resource require a tenant to be specified

[warning] Unhandled error in form submission for MyApp.Accounts.User.sign_in_with_password

This error was unhandled because Ash.Error.Invalid.TenantRequired does not implement the `AshPhoenix.FormData.Error` protocol.

** (Ash.Error.Invalid.TenantRequired) Queries against the MyApp.Accounts.User resource require a tenant to be specified

[warning] Unhandled error in form submission for MyApp.Accounts.User.sign_in_with_password

This error was unhandled because Ash.Error.Invalid.TenantRequired does not implement the `AshPhoenix.FormData.Error` protocol.

** (Ash.Error.Invalid.TenantRequired) Queries against the MyApp.Accounts.User resource require a tenant to be specified

[warning] Unhandled error in form submission for MyApp.Accounts.User.sign_in_with_password

This error was unhandled because Ash.Error.Invalid.TenantRequired does not implement the `AshPhoenix.FormData.Error` protocol.

** (Ash.Error.Invalid.TenantRequired) Queries against the MyApp.Accounts.User resource require a tenant to be specified

Issue submission requested by @zachdaniel as per Discord exchange