From 5da3b524fe52d634b862073305190c0c883ca259 Mon Sep 17 00:00:00 2001
From: Joseph Artsimovich <joseph.artsimovich@gmail.com>
Date: Mon, 7 Sep 2015 22:50:01 +0100
Subject: [PATCH] Prevent a crash on creating a thumbnail with a very high
 aspect ratio

---
 ThumbnailPixmapCache.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ThumbnailPixmapCache.cpp b/ThumbnailPixmapCache.cpp
index ce7efdc6..d38b4f42 100644
--- a/ThumbnailPixmapCache.cpp
+++ b/ThumbnailPixmapCache.cpp
@@ -974,6 +974,7 @@ ThumbnailPixmapCache::Impl::makeThumbnail(
 
 	QSize new_affine_size(orig_affine_size);
 	new_affine_size.scale(max_thumb_size, Qt::KeepAspectRatio);
+	new_affine_size = new_affine_size.expandedTo(QSize(1, 1));
 
 	// Scale down, to get a thumbnail-size dewarped image.
 	std::unique_ptr<AbstractImageTransform> downscaling_transform(