From b00d82eda047b9cea1d591aa7aacdbb8a769d73b Mon Sep 17 00:00:00 2001
From: "Storm B. Heg" <storm@stormbase.digital>
Date: Thu, 13 Jul 2023 10:23:03 +0200
Subject: [PATCH] Ensure StreamField panels validation errors are visible

...by rendering panels as expanded, regardless of the collapse
setting specified by the Wagtail implementor.

Fixes #8990 partially.
---
 .../src/components/StreamField/blocks/BaseSequenceBlock.js   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/client/src/components/StreamField/blocks/BaseSequenceBlock.js b/client/src/components/StreamField/blocks/BaseSequenceBlock.js
index 64a3dd0cfe3b..1f76d84814e9 100644
--- a/client/src/components/StreamField/blocks/BaseSequenceBlock.js
+++ b/client/src/components/StreamField/blocks/BaseSequenceBlock.js
@@ -349,6 +349,11 @@ export class BaseSequenceChild extends EventEmitter {
 
   setError(error) {
     this.block.setError(error);
+
+    // If there is an error, the panel should be expanded always so the error is not obscured
+    if (error) {
+      toggleCollapsiblePanel(this.toggleElement, true);
+    }
   }
 
   focus(opts) {