Dont apply gtask fragment if selected list is null

This can happen if initial synchronization has not taken place

build.gradle

@@ -32,7 +32,7 @@ android {
 
     defaultConfig {
         applicationId "org.tasks"
-        versionCode 409
+        versionCode 410
         versionName "4.8.18"
         minSdkVersion 14
         targetSdkVersion 24

src/googleplay/java/org/tasks/ui/GoogleTaskListFragment.java

@@ -117,6 +117,10 @@ public class GoogleTaskListFragment extends TaskEditControlFragment {
 
     @Override
     public void apply(Task task) {
+        if (selectedList == null) {
+            return;
+        }
+
         Metadata taskMetadata = gtasksMetadataService.getActiveTaskMetadata(task.getId());
         if (taskMetadata == null) {
             taskMetadata = GtasksMetadata.createEmptyMetadataWithoutList(task.getId());