libtiff: tiffcrop: Correct simple copy paste error. Fix #488. (b1f08)

SDL Commits
1 
From b1f082b544ab698a768c1c566fe53f475bd50c9e Mon Sep 17 00:00:00 2001
From: Su Laus <[EMAIL REDACTED]>
Date: Sat, 21 Jan 2023 15:58:10 +0000
Subject: [PATCH] tiffcrop: Correct simple copy paste error. Fix #488.

---
 tools/tiffcrop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
index a964c22e..d2ae4cc7 100644
--- a/tools/tiffcrop.c
+++ b/tools/tiffcrop.c
@@ -7516,7 +7516,7 @@ processCropSelections(struct image_data *image, struct crop_mask *crop,
       crop_buff = (unsigned char *)limitMalloc(cropsize + NUM_BUFF_OVERSIZE_BYTES);
     else
       {
-      prev_cropsize = seg_buffs[0].size;
+      prev_cropsize = seg_buffs[1].size;
       if (prev_cropsize < cropsize)
         {
         next_buff = _TIFFrealloc(crop_buff, cropsize + NUM_BUFF_OVERSIZE_BYTES);