From a26dc4be79b1c59f8955eebca6fe2e0cc33bfb26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Thu, 11 Jun 2020 12:02:48 +0200
Subject: [PATCH] [apps/calculation/additional_outputs] Expression::removeUnit
 can be called on reduced expression only

---
 apps/calculation/additional_outputs/unit_list_controller.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/calculation/additional_outputs/unit_list_controller.cpp b/apps/calculation/additional_outputs/unit_list_controller.cpp
index 5f15c86a5..3c48787ad 100644
--- a/apps/calculation/additional_outputs/unit_list_controller.cpp
+++ b/apps/calculation/additional_outputs/unit_list_controller.cpp
@@ -80,6 +80,8 @@ void UnitListController::setExpression(Poincare::Expression e) {
     }
     if (canChangeUnitPrefix) {
       Expression newUnits;
+      // Reduce to be able to removeUnit
+      PoincareHelpers::Reduce(&m_memoizedExpressions[currentExpressionIndex], App::app()->localContext(), ExpressionNode::ReductionTarget::User);
       m_memoizedExpressions[currentExpressionIndex] = m_memoizedExpressions[currentExpressionIndex].removeUnit(&newUnits);
       double value = Shared::PoincareHelpers::ApproximateToScalar<double>(m_memoizedExpressions[currentExpressionIndex], App::app()->localContext());
       ExpressionNode::ReductionContext reductionContext(