From e9dd6b06e03997ce4127702ab14e87b27d6e7520 Mon Sep 17 00:00:00 2001
From: Christian Rocha <christian@rocha.is>
Date: Sat, 20 Jun 2020 23:30:19 -0400
Subject: [PATCH] Fix duplicate character bug when deleting chars in long
 strings

If the string is longer than the width of the field and the horizontal
viewport (so to speak) was on the right edge, the last character would
repeat when deleting characters because the viewport offset wasn't being
corrected. This fixes that.
---
 textinput/textinput.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/textinput/textinput.go b/textinput/textinput.go
index d9ae1b9..ec35588 100644
--- a/textinput/textinput.go
+++ b/textinput/textinput.go
@@ -135,6 +135,9 @@ func (m *Model) handleOverflow() {
 		return
 	}
 
+	// Correct right offset if we've deleted characters
+	m.offsetRight = min(m.offsetRight, len(m.value))
+
 	if m.pos < m.offset {
 
 		m.offset = m.pos