From ba23eb752463744b90d2f12c826d7dcefedb1347 Mon Sep 17 00:00:00 2001
From: Jason Quense <monastic.panic@gmail.com>
Date: Mon, 23 Nov 2020 11:24:41 -0500
Subject: [PATCH] fix: path params incorrectly mutated

fixes #1122
---
 src/ValidationError.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ValidationError.js b/src/ValidationError.js
index aee2c80e1..132b26c03 100644
--- a/src/ValidationError.js
+++ b/src/ValidationError.js
@@ -34,7 +34,8 @@ ValidationError.isError = function (err) {
 };
 
 ValidationError.formatError = function (message, params) {
-  params.path = params.label || params.path || 'this';
+  const path = params.label || params.path || 'this';
+  if (path !== params.path) params = { ...params, path };
 
   if (typeof message === 'string')
     return message.replace(strReg, (_, key) => printValue(params[key]));