--- ../gtk/gtkrange.c	2016-10-21 21:11:30.000000000 -0700
+++ ../gtk/gtkrange.c	2020-03-05 17:38:35.726279990 -0800
@@ -1949,6 +1949,11 @@ gtk_range_expose (GtkWidget      *widget
               y      += offset;
               height -= shorter;
             }
+
+          if (height < -1)
+            height = -1;
+          if (width < -1)
+            width = -1;
 	}
 
       if (! trough_side_details)