From 3399db1cff841d80e7d304a79c3f07c031048861 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Garc=C3=ADa=20Aubert?=
 <danielgarciaaubert@gmail.com>
Date: Tue, 6 Mar 2018 18:58:09 +0100
Subject: [PATCH] Add comment

---
 lib/cartodb/controllers/layergroup.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/cartodb/controllers/layergroup.js b/lib/cartodb/controllers/layergroup.js
index 0f5512d6..899e35eb 100644
--- a/lib/cartodb/controllers/layergroup.js
+++ b/lib/cartodb/controllers/layergroup.js
@@ -600,6 +600,7 @@ LayergroupController.prototype.getAffectedTables = function (user, dbName, layer
                     return callback(err);
                 }
 
+                // feed affected tables cache so it can be reused from, for instance, map controller
                 this.layergroupAffectedTables.set(dbName, layergroupId, tables);
 
                 callback(null, tables);