From 27d8df1122ca91df47643d349f50da2bf94bf5bc Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Fri, 31 Dec 2021 23:31:18 +0000
Subject: [PATCH] Don't update units for UNSCALED, PERCENT or DEGREES.

Fixes https://gitlab.com/kicad/code/kicad/issues/10020
---
 common/widgets/unit_binder.cpp | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/common/widgets/unit_binder.cpp b/common/widgets/unit_binder.cpp
index 07f121a5f0..a84dff84b2 100644
--- a/common/widgets/unit_binder.cpp
+++ b/common/widgets/unit_binder.cpp
@@ -115,11 +115,16 @@ void UNIT_BINDER::SetDataType( EDA_DATA_TYPE aDataType )
 
 void UNIT_BINDER::onUnitsChanged( wxCommandEvent& aEvent )
 {
-    int temp = (int) GetValue();
+    if( m_units != EDA_UNITS::UNSCALED
+            && m_units != EDA_UNITS::DEGREES
+            && m_units != EDA_UNITS::PERCENT )
+    {
+        int temp = (int) GetValue();
 
-    SetUnits( m_frame->GetUserUnits() );
+        SetUnits( m_frame->GetUserUnits() );
 
-    SetValue( temp );
+        SetValue( temp );
+    }
 
     aEvent.Skip();
 }