CID 486508: Control flow issues in lib/ns/query.c

Coverity Scan claims a control flow issue in lib/ns/query.c.

/lib/ns/query.c: 6307 in fetch_callback()
6301     		 * Return an error to the client, or just drop.
6302     		 */
6303     		if (fetch_canceled) {
6304     			CTRACE(ISC_LOG_ERROR, "fetch cancelled");
6305     			query_error(client, DNS_R_SERVFAIL, __LINE__);
6306     		} else {
>>>     CID 486508:  Control flow issues  (DEADCODE)
>>>     Execution cannot reach this statement: "query_next(client, ISC_R_CA...".
6307     			query_next(client, ISC_R_CANCELED);
6308     		}
6309     
6310     		/*
6311     		 * Free any persistent plugin data that was allocated to
6312     		 * service the client, then detach the client object.