Time inside Virtual Machine does not get synchronized after 'virsh suspend/resume' with SYNC_TIME=1

Issue

While searching for an easy way of resyncing time after 'virsh suspend/resume', we've found that this is something what SYNC_TIME=1 parameter in the /etc/sysconfig/libvirt-guests should do. However, it seems it doesn't work and time synchronization doesn't happen, despite the qemu-guest-anget is installed in the VM and is working. Manual configuration using command virsh domtime --name $vm_name works without any problem.