Better nil url handling

UIImageView+WebCache.m

@@ -23,14 +23,12 @@
     // Remove in progress downloader from queue
     [manager cancelForDelegate:self];
 
-    if (!url)
+    UIImage *cachedImage = nil;
+    if (url)
     {
-        self.image = nil;
-        return;
+        cachedImage = [manager imageWithURL:url];
     }
 
-    UIImage *cachedImage = [manager imageWithURL:url];
-
     if (cachedImage)
     {
         self.image = cachedImage;
@@ -42,9 +40,12 @@
             self.image = placeholder;
         }
 
+        if (url)
+        {
             [manager downloadWithURL:url delegate:self];
         }
     }
+}
 
 - (void)cancelCurrentImageLoad
 {