Fix sqlite overflow on backup import

This is a hack to prevent the widget from generating a huge sqlite query
when it receives a flood of data source changed notifications. Not sure
why it was happening so this needs to be revisited

api/src/main/java/com/todoroo/astrid/core/SortHelper.java

@@ -66,7 +66,7 @@ public class SortHelper {
         }
         if ((flags & FLAG_SHOW_RECENTLY_COMPLETED) > 0) {
             originalSql = originalSql.replace(Task.COMPLETION_DATE.eq(0).toString(),
-                    Criterion.or(Task.COMPLETION_DATE.eq(0), Task.COMPLETION_DATE.gt(DateUtilities.now() - TimeUnit.MINUTES.toMillis(1))).toString());
+                    Criterion.or(Task.COMPLETION_DATE.lte(0), Task.COMPLETION_DATE.gt(DateUtilities.now() - TimeUnit.MINUTES.toMillis(1))).toString());
         }
         if((flags & FLAG_SHOW_HIDDEN) > 0) {
             originalSql = originalSql.replace(TaskCriteria.isVisible().toString(),