[pitivi] render: Do not forget to create property widgets in advanced setting!

[Thibault Saunier <tsaunier src gnome org>]

commit cdf22af60f0eccb81e411c298f5f8cddad0824ce
Author: Thibault Saunier <tsaunier igalia com>
Date:   Sun Mar 4 13:54:13 2018 -0300

    render: Do not forget to create property widgets in advanced setting!

 pitivi/utils/widgets.py | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/pitivi/utils/widgets.py b/pitivi/utils/widgets.py
index d8a4b64c..a207bdd5 100644
--- a/pitivi/utils/widgets.py
+++ b/pitivi/utils/widgets.py
@@ -1114,6 +1114,8 @@ class GstElementSettingsDialog(Loggable):
         self.window.set_title(
             _("Properties for %s") % self.factory.get_longname())
         self.elementsettings.setElement(self.element, self.properties)
+        self.elementsettings.add_widgets(
+            GstElementSettingsWidget.make_property_widget, with_reset_button=True)
 
         # Try to avoid scrolling, whenever possible.
         screen_height = self.window.get_screen().get_height()