[hyper-v] update comment for the update_state ip invalidation

Signed-off-by: Mustafa Kemal Gilor <[email protected]>

Author: xmkg

src/platform/backends/hyperv/hyperv_virtual_machine.cpp

@@ -455,14 +455,8 @@ void mp::HyperVVirtualMachine::update_state()
     // Invalidate the management IP address on state update.
     if (current_state() == VirtualMachine::State::running)
     {
-        // The reason "why" is as follows:
-        // - The daemon starts and constructs the VM
-        // - The mgmt IP address gets cached on the first invocation of management_ipv4()
-        // - `multipass restart` initiates a guest reboot with "sudo reboot"
-        // -  It's an "out-of-band" reboot in perspective of Hyper-V backend since
-        //    it does not trigger the "on_restart" function afterwards.
-        // - The cached "vm->ip address is not reset
-        // - management_ipv4() continues to report the stale IP address from the previous boot
+        // Cached IPs become stale when the guest is restarted from within. By resetting them here
+        // we at least cover multipass's restart initiatives, which include state updates.
         mpl::log(mpl::Level::debug,
                  vm_name,
                  "Invalidating cached mgmt IP address upon state update");