0 gameticks is a valid gameTime for checkpoints

Author: Burnt-o

HCMExternal/Converters/IGTConverter.cs

@@ -16,10 +16,14 @@ public object Convert(object value, Type targetType, object parameter, CultureIn
             }
 
             int gameTicks = (int)value;
-            if (gameTicks <= 0) // To avoid dividing 0 later. Should never be negative unless there was an error reading the checkpoint data.
+            if (gameTicks < 0) // To avoid dividing 0 later. Should never be negative unless there was an error reading the checkpoint data.
             {
                 return "???";
             }
+            else if (gameTicks == 0)
+            {
+                return "00:00";
+            }
 
             // So I'd like this to check what the current tab index is directly, but haven't figured out how.
             // ConverterParameter won't seem to work since this is from a control under the tab control.