Fix the empty address is matched with not-self connection's address

If the String is empty, the API "contains" can match with not-empty
String.

To fix it, add the non-empty decision to aviod abnormally updating
original connection.

Change-Id: I5c5ba5ca502306bd0080fa0471bcf8f8ebf519ba
CRs-Fixed: 2019020
1 file changed