Not sure wether or not this needs reporting, since the relic nerf is subject to change still.
But of course once garrisoned in a tower or keep - the tooltip for the relic says it is generating 100 gold/min. among armor, range and attack buff information. (On this note: The dock doesn’t even state that it generates gold while it very well does)
Also in the civ overview on the HRE page, it says that garrisoned relics generate 100 gold/min still.
If this is due to the change not being final, this report can of course be disregarded, thanks.