Reset magick_list_initialized when needed

Failure to do so makes it impossible to re-init magick_list as it is already
marked as initialized even if it was destroyed.

Fixes #825.

diff --git a/MagickCore/magick.c b/MagickCore/magick.c
index e6a839dc015a034b45e9bd88bfad590e341ea688..0a6ae99f98cbae484875065a6193d622c80944b1 100644 (file)
--- a/MagickCore/magick.c
+++ b/MagickCore/magick.c
@@ -1258,7 +1258,10 @@ MagickPrivate void MagickComponentTerminus(void)
     ActivateSemaphoreInfo(&magick_semaphore);
   LockSemaphoreInfo(magick_semaphore);
   if (magick_list != (SplayTreeInfo *) NULL)
-    magick_list=DestroySplayTree(magick_list);
+    {
+      magick_list=DestroySplayTree(magick_list);
+      magick_list_initialized=MagickFalse;
+    }
   UnlockSemaphoreInfo(magick_semaphore);
   RelinquishSemaphoreInfo(&magick_semaphore);
 }