Make sure to log error in findObjectsForSrc()

It is hidden right now if there is an error in configured named
fields and index. Lets log the error and return the current state
of requests.

With this the findObjectsForSrc() will exit with an hidden error
like:

```
"error": "Index with name field:.spec.ksmTls.caBundleSecretName does not exist"
```

Signed-off-by: Martin Schuppert <[email protected]>

Author: stuggi

controllers/galera_controller.go

@@ -985,6 +985,8 @@ func GetDatabaseObject(ctx context.Context, clientObj client.Client, name string
 func (r *GaleraReconciler) findObjectsForSrc(ctx context.Context, src client.Object) []reconcile.Request {
 	requests := []reconcile.Request{}
 
+	l := log.FromContext(context.Background()).WithName("Controllers").WithName("Galera")
+
 	for _, field := range allWatchFields {
 		crList := &mariadbv1.GaleraList{}
 		listOps := &client.ListOptions{
@@ -993,10 +995,13 @@ func (r *GaleraReconciler) findObjectsForSrc(ctx context.Context, src client.Obj
 		}
 		err := r.List(ctx, crList, listOps)
 		if err != nil {
-			return []reconcile.Request{}
+			l.Error(err, fmt.Sprintf("listing %s for field: %s - %s", crList.GroupVersionKind().Kind, field, src.GetNamespace()))
+			return requests
 		}
 
 		for _, item := range crList.Items {
+			l.Info(fmt.Sprintf("input source %s changed, reconcile: %s - %s", src.GetName(), item.GetName(), item.GetNamespace()))
+
 			requests = append(requests,
 				reconcile.Request{
 					NamespacedName: types.NamespacedName{