From 6f86cff5848ddfdc0d4a29b08dfd25f676924eaa Mon Sep 17 00:00:00 2001
From: Valentina Kiryushkina <valentina.kiryushkina@jetbrains.com>
Date: Tue, 17 Jan 2017 12:52:15 +0300
Subject: [PATCH] Fix NPE on resetTask action caused by choice tasks

---
 .../edu/learning/actions/StudyRefreshTaskFileAction.java      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/python/educational-core/student/src/com/jetbrains/edu/learning/actions/StudyRefreshTaskFileAction.java b/python/educational-core/student/src/com/jetbrains/edu/learning/actions/StudyRefreshTaskFileAction.java
index 1f273e0d116c..289107d0ffc6 100644
--- a/python/educational-core/student/src/com/jetbrains/edu/learning/actions/StudyRefreshTaskFileAction.java
+++ b/python/educational-core/student/src/com/jetbrains/edu/learning/actions/StudyRefreshTaskFileAction.java
@@ -99,7 +99,9 @@ public class StudyRefreshTaskFileAction extends StudyActionWithShortcut {
     }
     final Task task = taskFile.getTask();
     task.setStatus(StudyStatus.Unchecked);
-    task.setSelectedVariants(new ArrayList<>());
+    if (task.isChoiceTask()) {
+      task.setSelectedVariants(new ArrayList<>());
+    }
     resetAnswerPlaceholders(taskFile, project);
     ProjectView.getInstance(project).refresh();
     StudyUtils.updateToolWindows(project);