Just seeing this now while vetting your pubkey. This is actually by design. Every link that is rendered in the chat provides either 1 or 2 clickable portions. If there is no querystring, then its one clickable link to the target. If the link contains a querystring, then everything before the demarcation is a link going to the resource without the querystring, and the second link is on the querystring portion for the entire url. There is a slight styling difference, which could be improved to make it more clear