bnc#874594 - virt-manager allows issuing of start for xen domain twice, resulting in failure

Index: virt-manager-1.1.0/virtManager/details.py
===================================================================
--- virt-manager-1.1.0.orig/virtManager/details.py
+++ virt-manager-1.1.0/virtManager/details.py
@@ -1499,6 +1499,9 @@ class vmmDetails(vmmGObjectUI):
         self.widget("details-menu-usb-redirection").set_sensitive(can_usb)
 
     def control_vm_run(self, src_ignore):
+        # De-sensitize widget so a double click on the icon won't attempt to
+        # start the VM twice
+        self.widget("control-run").set_sensitive(False)
         self.emit("action-run-domain",
                   self.vm.conn.get_uri(), self.vm.get_connkey())