Ensure defunct watches have NULL handles
Ensure defunct watches have NULL handles

Signed-off-by: Owen Smith <ff5e3d9c9f82290ce2a1ee2b399fd0e8322eba85@citrix.com>

omeg/xeniface,omeg/xeniface,QubesOS/qubes-vmm-xen-win-pvdrivers-xeniface,omeg/xeniface,QubesOS/qubes-vmm-xen-win-pvdrivers-xeniface,QubesOS/qubes-vmm-xen-win-pvdrivers-xeniface