From bc723960f5e601655fb01b389f5e55bdb2cc103e Mon Sep 17 00:00:00 2001
From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Tue, 4 Dec 2018 19:04:51 +0100
Subject: [PATCH] fix #2336 @0.5

---
 js/libs/fluidbook/fluidbook.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/js/libs/fluidbook/fluidbook.js b/js/libs/fluidbook/fluidbook.js
index d571aecc..bbcaae57 100644
--- a/js/libs/fluidbook/fluidbook.js
+++ b/js/libs/fluidbook/fluidbook.js
@@ -460,7 +460,11 @@ Fluidbook.prototype = {
             speed = 0;
         }
 
-        var max = this.contentlock.getMaxPage() % 2 == 1 ? this.contentlock.getMaxPage() - 1 : this.contentlock.getMaxPage();
+        var max = this.contentlock.getMaxPage();
+        if (this.contentlock.getMaxPage() % 2 === 1 && this.datas.mobileNavigationType !== 'portrait' && this.resize.orientation !== 'portrait') {
+            max--;
+        }
+
         var next = page < max;
         var previous = (page > 1);
 
-- 
2.39.5