Don't update dom->persistent without lock held

virDomainObjListLoadAllConfigs sets dom->persistent after
having released its lock on the domain object. This exposes
a possible race condition.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
(cherry picked from commit b260a77e)

src/conf/domain_conf.c

@@ -17343,9 +17343,9 @@ virDomainObjListLoadAllConfigs(virDomainObjListPtr doms,
                                              notify,
                                              opaque);
         if (dom) {
-            virObjectUnlock(dom);
             if (!liveStatus)
                 dom->persistent = 1;
+            virObjectUnlock(dom);
         }
     }