From 566563e701d8e86ddb4f0bf0cd39a987b5c17803 Mon Sep 17 00:00:00 2001
From: Leo Gono <info@leogono.com>
Date: Tue, 3 Mar 2015 15:26:50 +0800
Subject: [PATCH] change default columns to 3.

Issue is if you set 3 in Gallery options it will output 4 columns in the frontend. The default WordPress column is 3 for gallery and if it's set to 3, it does not added any column attribute to the shortcode which cause the issue. Setting the default to 3 should fix the issue.
---
 lib/gallery.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/gallery.php b/lib/gallery.php
index fc569083cd..b17fa62729 100644
--- a/lib/gallery.php
+++ b/lib/gallery.php
@@ -43,7 +43,7 @@ function gallery($attr) {
     'itemtag'    => '',
     'icontag'    => '',
     'captiontag' => '',
-    'columns'    => 4,
+    'columns'    => 3,
     'size'       => 'thumbnail',
     'include'    => '',
     'exclude'    => '',
@@ -51,7 +51,7 @@ function gallery($attr) {
   ], $attr));
 
   $id = intval($id);
-  $columns = (12 % $columns == 0) ? $columns: 4;
+  $columns = (12 % $columns == 0) ? $columns: 3;
   $grid = sprintf('col-sm-%1$s col-lg-%1$s', 12/$columns);
 
   if ($order === 'RAND') {