fix: Apply coercion before value is set

src/Uno.UI/UI/Xaml/DependencyObjectStore.cs

@@ -461,6 +461,8 @@ private void InnerSetValue(DependencyProperty property, object? value, Dependenc
 					var previousValue = GetValue(propertyDetails);
 					var previousPrecedence = GetCurrentHighestValuePrecedence(propertyDetails);
 
+					ApplyCoercion(actualInstanceAlias, propertyDetails, previousValue, value);
+
 					// Set even if they are different to make sure the value is now set on the right precedence
 					SetValueInternal(value, precedence, propertyDetails);
 
@@ -470,8 +472,6 @@ private void InnerSetValue(DependencyProperty property, object? value, Dependenc
 						_resourceBindings?.ClearBinding(property, precedence);
 					}
 
-					ApplyCoercion(actualInstanceAlias, propertyDetails, previousValue, value);
-
 					// Value may or may not have changed based on the precedence
 					var newValue = GetValue(propertyDetails);
 					var newPrecedence = GetCurrentHighestValuePrecedence(propertyDetails);