From 78aaf7d8599288b9cddca027a24db25911fe77e4 Mon Sep 17 00:00:00 2001
From: LaurentiuMM <Laurentiu.Mierla@gmail.com>
Date: Tue, 10 Jun 2014 12:55:52 +0300
Subject: [PATCH] Fix for allowing the current cache to properly work with
 images which does not have the same internal format and extension (e.g. PNG
 internal format and .JPG extension).

Former-commit-id: da921bbe90fbf548ec7db7d8f2152d5049ee46e6
---
 src/ImageProcessor/ImageFactory.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ImageProcessor/ImageFactory.cs b/src/ImageProcessor/ImageFactory.cs
index b88c3d3bf..4db12e3f7 100644
--- a/src/ImageProcessor/ImageFactory.cs
+++ b/src/ImageProcessor/ImageFactory.cs
@@ -860,9 +860,9 @@ namespace ImageProcessor
                 int length = filePath.LastIndexOf(".", StringComparison.Ordinal);
                 string extension = this.ImageFormat.GetFileExtension(this.OriginalExtension);
 
-                if (!string.IsNullOrWhiteSpace(extension))
+                if (length == -1)
                 {
-                    filePath = length == -1 ? filePath + extension : filePath.Substring(0, length) + extension;
+                    filePath = filePath + extension;
                 }
 
                 // Fix the colour palette of indexed images.