Sometimes when I start shooting the weapon will not stop firing until it is out of bullets or until i left click again.
It is not only weapon related, i also experience the same bug when i try and hit something. My character just keeps punching until you click the left mouse button again.
I have talked to friends who mostly do not experience the problems i just described above but one told me that he had the same problem when he was using a laptop. I'm also playing DayZ on a laptop.
I have had the problem since a long time (also in previous versions) and it occurs quite often (~ every third time i punch/shoot).
I have only played stable versions (so i did only experience the bug on stable servers), but i guess it will be the same on experimental servers.