I have been reviewing Youtube videos on this subject, and there is one, where this guy does that. clicks the trigger, and it don't reset, puts in a loaded magazine, and releases the slide without holding the grip safety down. He did it three times, and each time there was in fact a slight firing pin mark on the primer, but the round did not fire. But the fact that the firing pin did leave a mark on the primer, is some cause for concern. It took him both hands to hold the gun sideways by the grip and release the slide without depressing the grip safety. He concluded that this was not a problem.