I’ve taken a look and indeed the count client code was missing, probably from the revamp work overall (sorry for that).
I’ve readded that if client count = 0 it will set the count back to the number of hosts in the system. (as was originally intended.) This should correct that action of it all.
Thank you for reporting. Working-1.5.1 has this change and will be reflected in 1.5.1 when we officially release.