qemu: Mark domains as having managed state image only on managed save

QEMU domains were marked as having managed save image even if they were
saved using the regular save. With this patch, domains are marked so
only when using managed save API.

src/qemu/qemu_driver.c

@@ -2739,7 +2739,6 @@ qemuDomainSaveInternal(struct qemud_driver *driver, virDomainPtr dom,
     }
 
     ret = 0;
-    vm->hasManagedSave = true;
 
     /* Shut it down */
     qemuProcessStop(driver, vm, VIR_DOMAIN_SHUTOFF_SAVED, 0);
@@ -2916,8 +2915,10 @@ qemuDomainManagedSave(virDomainPtr dom, unsigned int flags)
     VIR_INFO("Saving state to %s", name);
 
     compressed = QEMUD_SAVE_FORMAT_RAW;
-    ret = qemuDomainSaveInternal(driver, dom, vm, name, compressed,
-                                 NULL, flags);
+    if ((ret = qemuDomainSaveInternal(driver, dom, vm, name, compressed,
+                                      NULL, flags)) == 0)
+        vm->hasManagedSave = true;
+
     vm = NULL;
 
 cleanup: