fix constant panics when keystore is weird (pt2)

trifid-api/src/routes/v1/dnclient.rs

@@ -91,15 +91,18 @@ pub async fn dnclient(
     };
 
     let mut valid = false;
+    let mut valid_key;
 
     if let Some(client_keys) = client_keys {
         if client_keys.ed_pub.verify(req.message.as_bytes(), &signature).is_ok() {
             valid = true;
+            valid_key = client_keys;
         }
     }
     if let Some(client_keys_2) = client_keys_2 {
         if client_keys_2.ed_pub.verify(req.message.as_bytes(), &signature).is_ok() {
             valid = true;
+            valid_key = client_keys_2;
         }
     }
 
@@ -114,6 +117,8 @@ pub async fn dnclient(
         }]);
     }
 
+    let client_keys = valid_key;
+
     // Sig OK
     // Decode the message from base64