linkIdentity doesn't fail if the candidate identity is already linked to another user.

[f-bog]

Hi everyone,

I'm working on converting anonymous users to permanent ones using linkIdentity. It works fine when the provider account hasn't been linked to a user before. However, if I try to link an anonymous user to an already linked provider account, I would expect an error. But nothing happens.

I'm using Expo and the expo-web-browser to handle these authentication scenarios. When attempting to link, the browser opens for a split second before dismissing. Nothing is returned in the error object, and there's no way to identify the error to display a meaningful message on the client.

According to the documentation, this should fail. Am I missing something?

 const { data, error } = await supabase.auth.linkIdentity({
          provider: "google",
          options: {
            redirectTo,
          },
        });

 if (error) throw error; // error is null here

 const res = await WebBrowser.openBrowserAsync(data.url); // prompts open browser for a split second

[f-bog]

Should I move this over to bugs?

[oberbeck]

Same for me using the Flutter SDK.

[mattrltrent]

Same here. Serious issue. Any news on a fix?

[anthdm]

Serious issue. I don't even understand this gets no prior at all.