From 68f64498c2bbabaef0180f4d30207db2b0b67f07 Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Sat, 14 Jan 2012 10:53:23 -0800
Subject: [PATCH] Make sure that no extra inserting is done if the strategy
 changes.

---
 deflate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/deflate.c b/deflate.c
index 0ba984d..98c4d6e 100644
--- a/deflate.c
+++ b/deflate.c
@@ -1606,6 +1606,7 @@ local block_state deflate_stored(s, flush)
             FLUSH_BLOCK(s, 0);
         }
     }
+    s->insert = 0;
     if (flush == Z_FINISH) {
         FLUSH_BLOCK(s, 1);
         return finish_done;
@@ -1914,6 +1915,7 @@ local block_state deflate_rle(s, flush)
         }
         if (bflush) FLUSH_BLOCK(s, 0);
     }
+    s->insert = 0;
     if (flush == Z_FINISH) {
         FLUSH_BLOCK(s, 1);
         return finish_done;
@@ -1952,6 +1954,7 @@ local block_state deflate_huff(s, flush)
         s->strstart++;
         if (bflush) FLUSH_BLOCK(s, 0);
     }
+    s->insert = 0;
     if (flush == Z_FINISH) {
         FLUSH_BLOCK(s, 1);
         return finish_done;
-- 
2.7.4