Fix multiple selection

uhabits-android/src/androidTest/java/org/isoron/uhabits/acceptance/HabitsTest.kt

@@ -199,4 +199,15 @@ class HabitsTest : BaseUserInterfaceTest() {
         verifyDisplaysText("Track time")
         verifyDisplaysText("Wake up early")
     }
+
+    @Test
+    @Throws(Exception::class)
+    fun shouldAllowMultipleSelection() {
+        launchApp()
+        verifyShowsScreen(LIST_HABITS)
+        verifyDisplaysText("Track time")
+        longClickText("Wake up early")
+        longClickText("Track time")
+        verifyDisplaysText("2")
+    }
 }

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/views/HabitCardListController.kt

@@ -156,7 +156,7 @@ class HabitCardListController @Inject constructor(
         }
 
         private fun notifyListener() {
-            if (activeMode === SelectionMode())
+            if (activeMode is SelectionMode)
                 selectionMenu.get().onSelectionChange()
             else
                 selectionMenu.get().onSelectionFinish()