From 68feea5d4eda9ff1db750c76b696b52ed90b0d29 Mon Sep 17 00:00:00 2001
From: Ryan Cramer <ryan@processwire.com>
Date: Wed, 4 Jan 2023 09:51:55 -0500
Subject: [PATCH] Fix issue processwire/processwire-issues#1661

---
 .../modules/Inputfield/InputfieldFile/InputfieldFile.module | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/wire/modules/Inputfield/InputfieldFile/InputfieldFile.module b/wire/modules/Inputfield/InputfieldFile/InputfieldFile.module
index 83b2b799..8f1004e4 100644
--- a/wire/modules/Inputfield/InputfieldFile/InputfieldFile.module
+++ b/wire/modules/Inputfield/InputfieldFile/InputfieldFile.module
@@ -1434,6 +1434,12 @@ class InputfieldFile extends Inputfield implements InputfieldItemList, Inputfiel
 		foreach($inputfields->getAll() as $f) {
 			/** @var Inputfield $f  */
 			
+			if($f->get('requiredAttr') || $f->attr('required')) {
+				// required attribute not possible for dynamically changed inputs
+				$f->set('requiredAttr', 0);
+				$f->removeAttr('required');
+			}
+			
 			if(wireInstanceOf($f, 'InputfieldCKEditor')) {
 				/** @var InputfieldCKEditor $f */
 				$ckeField = $f->hasField;