I have seen it aswell. I have followed multiple games where this has occured. Eventually I decided to time the possessions myself, when I saw it happen constantly. To me it seems to be a viewer bug, as every possession that reseted the clock without any action actually produced a shot or "event" within 24 seconds.
I guess this has been around for ages? True/false?
I haven't seen that behavior so much. What I usually see are the shot clock visually reset to 14 on fouls sometimes but up to 24 seconds allowed for a shot, and of course the "shot clock runs past 00 meaning a steal is coming" viewer bug. (In every case I've noticed, when that steal after 00 occurs, the opposing team has a shot or turnover before 48 seconds expired from the original possession so I assume that it's just that a steal very late in the shot clock for some reason doesn't get reported until late).