From c6e26c8765b8e12eb293275455de106888305852 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hanno=20J=2E=20G=C3=B6decke?= <die.drei99@yahoo.de>
Date: Tue, 16 Jul 2024 12:43:07 +0200
Subject: [PATCH] fix(web): onChange event start negative

---
 src/MarkdownTextInput.web.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/MarkdownTextInput.web.tsx b/src/MarkdownTextInput.web.tsx
index 7581e9a6..a73a1287 100644
--- a/src/MarkdownTextInput.web.tsx
+++ b/src/MarkdownTextInput.web.tsx
@@ -418,7 +418,7 @@ const MarkdownTextInput = React.forwardRef<TextInput, MarkdownTextInputProps>(
           if (inputType === 'deleteContentBackward') {
             // When the user does a backspace delete he expects the content before the cursor to be removed.
             // For this the start value needs to be adjusted (its as if the selection was before the text that we want to delete)
-            start -= before;
+            start = Math.max(start - before, 0);
           }
 
           event.nativeEvent.count = count;