gabelmoo's sbws weight sum is greater than the 50% of the consensus

As explained at #40115 (closed) gabelmoo's sbws is reporting this warning.

It looks like gabelmoo's had always greatest consensus weight sum (see for instance the total consensus weight graph back in 2018 when the log was created: https://metrics.torproject.org/totalcw.png?start=2018-10-01&end=2018-10-31), what it probably due gabelmoo's location (Germany). What i'm not sure is whether it was as much as the 50% before because relays were getting stuck in bandwidth partitions with torflow or we just didn't notice cause torflow wasn't logging that.

This issue is to investigate why this is happening.