https://bugs.gentoo.org/883641
https://gitlab.com/libtiff/libtiff/-/issues/489
https://gitlab.com/libtiff/libtiff/-/commit/72de8fd00be8a583a6b16cc0b700105020d249ba

From 72de8fd00be8a583a6b16cc0b700105020d249ba Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Tue, 29 Nov 2022 14:57:27 +0100
Subject: [PATCH] TIFFWriteRawStrip(): restore capabilities to append data in
 the current strip (fixes #489)

This fixes a regression of libtiff 4.4.0
--- a/libtiff/tif_write.c
+++ b/libtiff/tif_write.c
@@ -341,10 +341,13 @@ TIFFWriteRawStrip(TIFF* tif, uint32_t strip, void* data, tmsize_t cc)
 			return ((tmsize_t) -1);
 	}
 
-	tif->tif_curstrip = strip;
+    if (tif->tif_curstrip != strip)
+    {
+        tif->tif_curstrip = strip;
 
-	/* this informs TIFFAppendToStrip() we have changed or reset strip */
-	tif->tif_curoff = 0;
+        /* this informs TIFFAppendToStrip() we have changed or reset strip */
+        tif->tif_curoff = 0;
+    }
 
         if (td->td_stripsperimage == 0) {
                 TIFFErrorExtR(tif, module,"Zero strips per image");
-- 
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