tests: clone properties too when cloning a template

This is especially relevant if extra kernel options are necessary - for
example for SELinux, otherwise full relabel will be started (and will
timeout the VM start). But there may be other cases too.

(cherry picked from commit a769de1)

qubes/tests/integ/grub.py

@@ -97,6 +97,7 @@ def test_000_standalone_vm(self):
             label='red')
         self.testvm1.virt_mode = self.virt_mode
         self.testvm1.features.update(self.app.domains[self.template].features)
+        self.testvm1.clone_properties(self.app.domains[self.template])
         self.loop.run_until_complete(
             self.testvm1.clone_disk_files(self.app.domains[self.template]))
         self.loop.run_until_complete(self.testvm1.start())
@@ -117,6 +118,7 @@ def test_010_template_based_vm(self):
             name=self.make_vm_name('template'), label='red')
         self.test_template.virt_mode = self.virt_mode
         self.test_template.features.update(self.app.domains[self.template].features)
+        self.test_template.clone_properties(self.app.domains[self.template])
         self.loop.run_until_complete(
             self.test_template.clone_disk_files(self.app.domains[self.template]))