network: Clean up after inactive objects during start

Once networkUpdateState() identifies a dead network it should clean up
after it as well.

Resolves: https://issues.redhat.com/browse/RHEL-50968
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>

src/network/bridge_driver.c

@@ -510,6 +510,12 @@ networkUpdateState(virNetworkObj *obj,
         virNetworkObjSetDnsmasqPid(obj, dnsmasqPid);
     }
 
+    /* Clean up after networks which were active but we have found out they are
+     * actually down */
+    if (!virNetworkObjIsActive(obj)) {
+        networkShutdownNetwork(driver, obj);
+    }
+
     return 0;
 }