From dc2d4b62e6cd998711ab9581bd2b0aadfbcea07c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mateusz=20Zag=C3=B3rski?= <mateusz.zagorski.ext@wire.com>
Date: Thu, 7 Nov 2024 17:01:24 +0100
Subject: [PATCH] fix: Username index out of bounds exception #WPB-12143
 (#3605)

---
 .../android/ui/common/textfield/InputTransformations.kt     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/src/main/kotlin/com/wire/android/ui/common/textfield/InputTransformations.kt b/app/src/main/kotlin/com/wire/android/ui/common/textfield/InputTransformations.kt
index 08c1e02c4d..e6c31c049c 100644
--- a/app/src/main/kotlin/com/wire/android/ui/common/textfield/InputTransformations.kt
+++ b/app/src/main/kotlin/com/wire/android/ui/common/textfield/InputTransformations.kt
@@ -90,7 +90,11 @@ fun InputTransformation.forceLowercase(): InputTransformation =
 
 class ForceLowercaseTransformation : InputTransformation {
     override fun TextFieldBuffer.transformInput() {
-        replace(0, length, asCharSequence().toString().lowercase())
+        val currentText = asCharSequence().toString()
+        val lowercasedText = currentText.lowercase()
+        if (currentText != lowercasedText) {
+            replace(0, length, lowercasedText)
+        }
     }
 }