Map name identifier to email

Author: Denis Ivanov

src/AspNet.Security.OAuth.MailRu/MailRuAuthenticationOptions.cs

@@ -27,7 +27,7 @@ public MailRuAuthenticationOptions()
             TokenEndpoint = MailRuAuthenticationDefaults.TokenEndpoint;
             UserInformationEndpoint = MailRuAuthenticationDefaults.UserInformationEndpoint;
 
-            ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "client_id");
+            ClaimActions.MapJsonKey(ClaimTypes.NameIdentifier, "email");
             ClaimActions.MapJsonKey(ClaimTypes.Name, "nickname");
             ClaimActions.MapJsonKey(ClaimTypes.Gender, "gender");
             ClaimActions.MapJsonKey(ClaimTypes.Email, "email");