(imagemagick_get_animation_cache): Fix memory leak.

src/ChangeLog

@@ -2,6 +2,9 @@
 
 	* image.c (imagemagick_get_animation_cache): Don't segfault on
 	each invocation.
+	(imagemagick_get_animation_cache): Revert to previous definition
+	so that it actually works.  But keep the memory leak fix.
+	(imagemagick_get_animation_cache): Fix memory leak.
 
 2013-08-19  Paul Eggert  <eggert@cs.ucla.edu>
 

src/image.c

@@ -7945,10 +7945,10 @@ imagemagick_get_animation_cache (MagickWand *wand)
   if (strcmp (signature, cache->signature))
     {
       cache->next = imagemagick_create_cache (signature);
-      DestroyString (signature);
       return cache->next;
     }
 
+  DestroyString (signature);
   cache->update_time = current_emacs_time ();
   return cache;
 }