From 2e9896c893602dfab6a1b564800c6354b802cece Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Wed, 20 Dec 2023 09:52:17 -0800
Subject: [PATCH] fix: deep clone before relativizing urls in transclude
 (closes #640)

---
 package-lock.json   | 6 ++++++
 package.json        | 1 +
 quartz/util/path.ts | 7 ++++++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/package-lock.json b/package-lock.json
index 0bc416311..dd88ff7da 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -52,6 +52,7 @@
         "remark-parse": "^11.0.0",
         "remark-rehype": "^11.0.0",
         "remark-smartypants": "^2.0.0",
+        "rfdc": "^1.3.0",
         "rimraf": "^5.0.5",
         "serve-handler": "^6.1.5",
         "shikiji": "^0.9.9",
@@ -5161,6 +5162,11 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/rfdc": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/rfdc/-/rfdc-1.3.0.tgz",
+      "integrity": "sha512-V2hovdzFbOi77/WajaSMXk2OLm+xNIeQdMMuB7icj7bk6zi2F8GGAxigcnDFpJHbNyNcgyJDiP+8nOrY5cZGrA=="
+    },
     "node_modules/rimraf": {
       "version": "5.0.5",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-5.0.5.tgz",
diff --git a/package.json b/package.json
index 252467e14..70df83305 100644
--- a/package.json
+++ b/package.json
@@ -77,6 +77,7 @@
     "remark-parse": "^11.0.0",
     "remark-rehype": "^11.0.0",
     "remark-smartypants": "^2.0.0",
+    "rfdc": "^1.3.0",
     "rimraf": "^5.0.5",
     "serve-handler": "^6.1.5",
     "shikiji": "^0.9.9",
diff --git a/quartz/util/path.ts b/quartz/util/path.ts
index 92cfabe49..d3997069b 100644
--- a/quartz/util/path.ts
+++ b/quartz/util/path.ts
@@ -1,5 +1,9 @@
 import { slug as slugAnchor } from "github-slugger"
 import type { Element as HastElement } from "hast"
+import rfdc from "rfdc"
+
+const clone = rfdc()
+
 // this file must be isomorphic so it can't use node libs (e.g. path)
 
 export const QUARTZ = "quartz"
@@ -121,7 +125,8 @@ const _rebaseHastElement = (
   }
 }
 
-export function normalizeHastElement(el: HastElement, curBase: FullSlug, newBase: FullSlug) {
+export function normalizeHastElement(rawEl: HastElement, curBase: FullSlug, newBase: FullSlug) {
+  const el = clone(rawEl) // clone so we dont modify the original page
   _rebaseHastElement(el, "src", curBase, newBase)
   _rebaseHastElement(el, "href", curBase, newBase)
   if (el.children) {