From f93cf968327635b61bf0a9fac5cc0de0dcc398ec Mon Sep 17 00:00:00 2001
From: DreamPiggy <lizhuoli1126@126.com>
Date: Tue, 8 Nov 2022 16:44:40 +0800
Subject: [PATCH] Avoid store original disk cache again when using thumbnail 
 or transformer from the full size data

This solve #3395
---
 SDWebImage/Core/SDWebImageManager.m | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/SDWebImage/Core/SDWebImageManager.m b/SDWebImage/Core/SDWebImageManager.m
index 8ffc16ee..6bb7c147 100644
--- a/SDWebImage/Core/SDWebImageManager.m
+++ b/SDWebImage/Core/SDWebImageManager.m
@@ -565,6 +565,13 @@ static id<SDImageLoader> _defaultImageLoader;
     }
     id<SDWebImageCacheSerializer> cacheSerializer = context[SDWebImageContextCacheSerializer];
     
+    // If the original cacheType is disk, since we don't need to store the original data again
+    // Strip the disk from the originalStoreCacheType
+    if (cacheType == SDImageCacheTypeDisk) {
+        if (originalStoreCacheType == SDImageCacheTypeDisk) originalStoreCacheType = SDImageCacheTypeNone;
+        if (originalStoreCacheType == SDImageCacheTypeAll) originalStoreCacheType = SDImageCacheTypeMemory;
+    }
+    
     // Get original cache key generation without transformer
     NSString *key = [self originalCacheKeyForURL:url context:context];
     if (finished && cacheSerializer && (originalStoreCacheType == SDImageCacheTypeDisk || originalStoreCacheType == SDImageCacheTypeAll)) {