From 37c2d0afb9b4b878aa2383b0c3f5d6ccdc56ed4d Mon Sep 17 00:00:00 2001
From: Andrey Kunchev <donandren@gmail.com>
Date: Mon, 5 Oct 2020 20:15:27 +0300
Subject: [PATCH] possible fix for #4806 for text formatting with wrap

---
 .../Media/TextFormatting/TextFormatterImpl.cs                 | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Avalonia.Visuals/Media/TextFormatting/TextFormatterImpl.cs b/src/Avalonia.Visuals/Media/TextFormatting/TextFormatterImpl.cs
index 3e85f0f6f0..7e31d7e6ee 100644
--- a/src/Avalonia.Visuals/Media/TextFormatting/TextFormatterImpl.cs
+++ b/src/Avalonia.Visuals/Media/TextFormatting/TextFormatterImpl.cs
@@ -391,6 +391,10 @@ namespace Avalonia.Media.TextFormatting
                                 measuredLength = currentBreakPosition + lineBreaker.Current.PositionWrap;
                             }
                         }
+                        else if (measuredLength == 0 && currentLength == 0)
+                        {
+                            measuredLength = 1;
+                        }
                     }
 
                     currentLength += measuredLength;