Fix app crash on habit deletion when sorted not manually.

uhabits-core/src/jvmMain/java/org/isoron/uhabits/core/models/sqlite/SQLiteHabitList.kt

@@ -131,7 +131,9 @@ class SQLiteHabitList @Inject constructor(private val modelFactory: ModelFactory
     @Synchronized
     override fun remove(h: Habit) {
         loadRecords()
+        if (Order.BY_POSITION.equals(list.primaryOrder)) {
             reorder(h, list.getByPosition(size() - 1))
+        }
         list.remove(h)
         val record = repository.find(
             h.id!!

uhabits-core/src/jvmTest/java/org/isoron/uhabits/core/models/sqlite/SQLiteHabitListTest.kt

@@ -157,6 +157,14 @@ class SQLiteHabitListTest : BaseUnitTest() {
         val h = habitList.getById(2)
         habitList.remove(h!!)
         assertThat(habitList.indexOf(h), equalTo(-1))
+
+        habitList.add(h)
+        val primaryOrder = habitList.primaryOrder
+        habitList.primaryOrder = HabitList.Order.BY_NAME_DESC
+        habitList.remove(h)
+        assertThat(habitList.indexOf(h), equalTo(-1))
+        habitList.primaryOrder = primaryOrder
+
         var rec = repository.find(2L)
         assertNull(rec)
         rec = repository.find(3L)!!