It’s by design. Ride the pump back and slam it forward and you’re on target like a semi auto. It’s helping you not waste time like some people who shoot and then take their time cycling the next one.
On a related note, some shotguns will not open if you pull back too hard on the pump while firing, like the 500, 870, M37, Mod 12, Mod 31, Novas…
The alloy receiver winchesters are designed to not do that, also the BPS and some Weatherby based designs from Turkey.