Fix: Fixed the issue with default detection time in event search form.

The default lower boundary of detection time was here to limit the number of results that needed to be sorted. This is not necessary, because the select does backwards index scan of detecttime anyway and is almost instant. (Redmine issue: #4369)

lib/hawat/blueprints/events/forms.py

@@ -45,8 +45,7 @@ class SimpleEventSearchForm(hawat.forms.BaseSearchForm):
         validators = [
             wtforms.validators.Optional()
         ],
-        format = '%Y-%m-%d %H:%M:%S',
-        default = lambda: hawat.forms.default_dt_with_delta(hawat.const.HAWAT_DEFAULT_RESULT_TIMEDELTA)
+        format = '%Y-%m-%d %H:%M:%S'
     )
     dt_to = hawat.forms.DateTimeLocalField(
         lazy_gettext('Detection time to:'),