Patch taken from
https://github.com/jqlang/jq/commit/a4d9d540103ff9a262e304329c277ec89b27e5f9

From a4d9d540103ff9a262e304329c277ec89b27e5f9 Mon Sep 17 00:00:00 2001
From: itchyny <itchyny@cybozu.co.jp>
Date: Mon, 15 Sep 2025 07:47:51 +0900
Subject: [PATCH] Fix expected value assertion for NaN value (fix #3393)
 (#3408)

---
 src/jq_test.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

--- jq-1.8.0/src/jq_test.c.orig
+++ jq-1.8.0/src/jq_test.c
@@ -2,6 +2,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#include <math.h>
 #ifdef HAVE_PTHREAD
 #include <pthread.h>
 #endif
@@ -199,11 +200,13 @@
         pass = 0;
       }
 #ifdef USE_DECNUM
-      jv as_string = jv_dump_string(jv_copy(expected), rand() & ~(JV_PRINT_COLOR|JV_PRINT_REFCOUNT));
-      jv reparsed = jv_parse_sized(jv_string_value(as_string), jv_string_length_bytes(jv_copy(as_string)));
-      assert(jv_equal(jv_copy(expected), jv_copy(reparsed)));
-      jv_free(as_string);
-      jv_free(reparsed);
+      if (!(jv_get_kind(expected) == JV_KIND_NUMBER && isnan(jv_number_value(expected)))) {
+        jv as_string = jv_dump_string(jv_copy(expected), rand() & ~(JV_PRINT_COLOR|JV_PRINT_REFCOUNT));
+        jv reparsed = jv_parse_sized(jv_string_value(as_string), jv_string_length_bytes(jv_copy(as_string)));
+        assert(jv_equal(jv_copy(expected), jv_copy(reparsed)));
+        jv_free(as_string);
+        jv_free(reparsed);
+      }
 #endif
       jv_free(expected);
       jv_free(actual);