From 9d576891121cfc2410b1a899af095a09f8b363ed Mon Sep 17 00:00:00 2001
From: Brian Gough <briangough@users.noreply.github.com>
Date: Mon, 20 Jul 2026 09:32:27 +0100
Subject: [PATCH] Merge pull request #35549 from
 overleaf/copilot/fix-prettier-caching-issue

Work around Prettier stale-cache parse-error behavior in root format commands

GitOrigin-RevId: 1669047b3f52c15fcbff8bff41fcb1ca1257418d
---
 .yarn/patches/prettier-npm-3.7.4.patch | 14 ++++++++++++++
 package.json                           |  1 +
 yarn.lock                              |  9 +++++++++
 3 files changed, 24 insertions(+)
 create mode 100644 .yarn/patches/prettier-npm-3.7.4.patch

diff --git a/.yarn/patches/prettier-npm-3.7.4.patch b/.yarn/patches/prettier-npm-3.7.4.patch
new file mode 100644
index 0000000000..d44ad51a41
--- /dev/null
+++ b/.yarn/patches/prettier-npm-3.7.4.patch
@@ -0,0 +1,14 @@
+diff --git a/internal/legacy-cli.mjs b/internal/legacy-cli.mjs
+index a76a536..f4d95ad 100644
+--- a/internal/legacy-cli.mjs
++++ b/internal/legacy-cli.mjs
+@@ -5832,6 +5832,9 @@ async function formatFiles(context) {
+       }
+       output = result.formatted;
+     } catch (error2) {
++      // invalidate cache on format error
++      formatResultsCache?.removeFormatResultsCache(filename);
++
+       const errorIsIgnored = handleError(
+         context,
+         fileNameToDisplay,
diff --git a/package.json b/package.json
index 07620c6e6e..3c7fd787e3 100644
--- a/package.json
+++ b/package.json
@@ -42,6 +42,7 @@
     "request/tough-cookie": "5.1.2",
     "request/form-data": "2.5.6",
     "request/qs": "6.15.2",
+    "prettier@npm:3.7.4": "patch:prettier@npm%3A3.7.4#~/.yarn/patches/prettier-npm-3.7.4.patch",
     "@cypress/request/qs": "6.15.2",
     "qs": "6.15.2",
     "@opentelemetry/api": "1.9.0",
diff --git a/yarn.lock b/yarn.lock
index 23fa9e14e2..3a046249a1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -27243,6 +27243,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"prettier@patch:prettier@npm%3A3.7.4#~/.yarn/patches/prettier-npm-3.7.4.patch":
+  version: 3.7.4
+  resolution: "prettier@patch:prettier@npm%3A3.7.4#~/.yarn/patches/prettier-npm-3.7.4.patch::version=3.7.4&hash=0ce00c"
+  bin:
+    prettier: bin/prettier.cjs
+  checksum: 10c0/5a83fc7bf8ec838d1d9989110412df73cf5c0c367bc54994cde2bb45a18de15cc496270b249eb6d01923495295a1978ca00712c9c5acc2586c56cf161c7b452d
+  languageName: node
+  linkType: hard
+
 "pretty-bytes@npm:^5.6.0":
   version: 5.6.0
   resolution: "pretty-bytes@npm:5.6.0"