Include identity attributes when cloning Comdb2

Signed-off-by: Hector Geraldino <hgeraldino@bloomberg.net>

Author: hgeraldino

cdb2jdbc/src/main/java/com/bloomberg/comdb2/jdbc/Comdb2Handle.java

@@ -200,6 +200,10 @@ public Comdb2Handle duplicate() {
         ret.hasSendStack = hasSendStack;
         ret.sendStack = sendStack;
 
+        ret.hasUseIdentity = hasUseIdentity;
+        ret.useIdentity = useIdentity;
+        ret.ic = ic;
+
         return ret;
     }