qemu: Ignore shutdown event from destroyed domain

During virDomainDestroy, QEMU may emit SHUTDOWN event as a response to
SIGTERM and since domain object is still locked, the event is processed
after the domain is destroyed. We need to ignore this event in such case
to avoid changing domain state from shutoff to shutdown.

src/qemu/qemu_process.c

@@ -471,6 +471,10 @@ qemuProcessHandleShutdown(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
         VIR_DEBUG("Ignoring repeated SHUTDOWN event from domain %s",
                   vm->def->name);
         goto unlock;
+    } else if (!virDomainObjIsActive(vm)) {
+        VIR_DEBUG("Ignoring SHUTDOWN event from inactive domain %s",
+                  vm->def->name);
+        goto unlock;
     }
     priv->gotShutdown = true;