From ff0d8efced4e95520b9e8bb7611e58d7c7af696d Mon Sep 17 00:00:00 2001
From: Paul Pound <ppound@upei.ca>
Date: Thu, 4 May 2023 09:46:34 -0300
Subject: [PATCH] fix white screen when block is empty

---
 src/Plugin/Block/ReserveBlock.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Plugin/Block/ReserveBlock.php b/src/Plugin/Block/ReserveBlock.php
index 82956d0..f56528c 100644
--- a/src/Plugin/Block/ReserveBlock.php
+++ b/src/Plugin/Block/ReserveBlock.php
@@ -21,7 +21,7 @@ class ReserveBlock extends BlockBase {
   public function build() {
     $html = $this->getReserves();
     if (empty($html)) {
-      return '';
+      return [];
     }
 
     return [