From 804b786065b81e0ae4259e3a5042fd68e371d06c Mon Sep 17 00:00:00 2001
From: Mike Colagrosso <colagrosso@users.noreply.github.com>
Date: Wed, 12 Feb 2025 22:25:40 -0700
Subject: [PATCH] Keep IndexableText null if it's an empty string

The `Validate()` method is correctly setting it to null, but then the
`UPDATE` SQL statement is triggering another call to
`GetIndexableText()`. Without this change, empty strings are being
written to the `IndexableText` column.
---
 lib/Ebook.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/Ebook.php b/lib/Ebook.php
index d4037136..8de96798 100644
--- a/lib/Ebook.php
+++ b/lib/Ebook.php
@@ -729,6 +729,10 @@ final class Ebook{
 			}
 
 			$this->_IndexableText = Formatter::RemoveDiacriticsAndNonalphanumerics($this->_IndexableText);
+
+			if($this->_IndexableText == ''){
+				$this->_IndexableText = null;
+			}
 		}
 
 		return $this->_IndexableText;