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+--TEST--
+Bug #46147 (after stream seek, appending stream filter reads incorrect data)
+--FILE--
+<?php
+$fp = tmpfile();
+fwrite($fp, "this is a lowercase string.\n");
+fseek($fp, 5);
+stream_filter_append($fp, "string.toupper");
+while (!feof($fp)) {
+ echo fread($fp, 5);
+}
+
+--EXPECT--
+IS A LOWERCASE STRING.