gmail – Emails sent to google app alias not being marked as spam after reporting

I have a google apps account and a few alias for the same email. Usually, when I get a spam email and mark it as spam, any subsequent emails from that address will automatically go to the spam folder.

However, when the recipient of that email is one of the aliases, then marking the email as spam does not achieve that result, and subsequent emails from the same spam sender to the same alias will go to my inbox.

Is this intended behavior? Is there a way to fix it?