Errors on pages login-idp-link-confirm and login-idp-link-email

[Ann2827]

Hi!
It's me again. I have a problem with templates login-idp-link-confirm and login-idp-link-email. She's linked with keys again.

How to reproduce the problem:

• register mail m@m.ru (via template register.ftl)
• add to keycloak GitHub identityProvider
• have a GitHub account with email m@m.ru
• try logging in by template login.ftl via GitHub

Problems:

• login-idp-link-confirm.ftl takes a long time to load. As a result , it gives 500.
• login-idp-link-email.ftl (you can see it after fixing the template login-idp-link-confirm.ftl). It takes a long time to load, but template works

How to fix:
The problem is in .data_model.identityProviderBrokerCtx and .data_model.brokerContext. But .data_model.brokerContext.username is used in login-idp-link-email.ftl. I found all the keys in brokerContext and calculated the keys that break the template: ["contextData", "idpConfig", "idp", "authenticationSession"].

New exceptions for .data_model object:

<#if
    ["contextData", "idpConfig", "idp", "authenticationSession"]?seq_contains(key) &&
    are_same_path(path, ["brokerContext"])
>
        <#continue>
</#if>
<#if key == "identityProviderBrokerCtx" && are_same_path(path, []) ><#continue></#if>

[garronej]

Hi @Ann2827,
Thank you for the detailed issue, I didn't implement this page, it's from the community.
Unfortunately I have no time to deal with keycloaky issues right now.
I will happily merge your PR though
You deserve to appear in the contributor list!