Redirectors Plugin vs. google maps => consent.google.com

Hi!

I currently see many SpamAssassin 4.0.2 timeouts caused by the Redirectors
Plugin.

After I managed to get copies of the affected E-Mails I see a pattern.

They all have Links to https://www.google.com/maps/... which cause a
redirect to https://constent.google.com/ml?continue=... with the same URI
as initially fetched.

This causes a redirection continuation up to the configured limit.

Since google decided to answer pretty slow to these requests you easily
reach Scantimes >3-4 Minutes if the source chose to insert multiple copies
of these maps URIs.

And AFAIS the configured cache doesn't handle this scenario very well. At
least not in a fashion speeding things up.

What's the best way to prevent that? The only option I currently see is
clear_url_redirector google.com
and that doesn't look that optimal.

Greetings,
Wolfgang