From b9e40aebc2abd370a2b3f81089c1420401b24899 Mon Sep 17 00:00:00 2001
From: Codex <codex@houseplan.tech>
Date: Fri, 11 Sep 2026 09:31:19 +0300
Subject: [PATCH] fix(mutants): a multi-line anchor is built from escaped parts

The registry lives in a JavaScript file, so an anchor that contains a
newline has to be written with escapes; pasting the real line break
broke the module and --check reported nothing while exiting non-zero.

Issue: #526
User-Visible: no
---
 scripts/mutation-gate.mjs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts/mutation-gate.mjs b/scripts/mutation-gate.mjs
index 581da2e8..56a906dd 100644
--- a/scripts/mutation-gate.mjs
+++ b/scripts/mutation-gate.mjs
@@ -3631,9 +3631,10 @@ const MUTANT_DEFINITIONS = [
       + 'считать сэкономленные байты',
     patches: [{
       file: 'scripts/css-template-minifier.mjs',
-      find: '    if (pendingSpace && out && !TIGHT_AFTER.has(out.at(-1))' + ' && !TIGHT_BEFORE.has(char)) {
-      out += ' ';
-    }',
+      find: '    if (pendingSpace && out && !TIGHT_AFTER.has(out.at(-1))'
+        + ' && !TIGHT_BEFORE.has(char)) {\n'
+        + "      out += ' ';\n"
+        + '    }',
       replace: '    void pendingSpace; // mutant: значащий пробел больше не восстанавливается',
     }],
   },