[pitivi] preset: Fix combo item activation when saving

[Alexandru Băluț <alexbalut src gnome org>]

commit 8b2927ee6f29e3770c110c96ce7a4eefc4647064
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Tue Dec 19 02:30:21 2017 +0100

    preset: Fix combo item activation when saving
    
    TestRender.test_remove_profile was failing because after saving the
    proper item was not selected.
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1921

 pitivi/preset.py |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/pitivi/preset.py b/pitivi/preset.py
index db8afb4..065ceaa 100644
--- a/pitivi/preset.py
+++ b/pitivi/preset.py
@@ -147,6 +147,8 @@ class PresetManager(GObject.Object, Loggable):
         entry = self.combo.get_child()
         preset_name = entry.get_text()
         self.saveCurrentPreset(preset_name)
+        # Useful when a new preset has just been created.
+        self.combo.set_active_id(preset_name)
         self.updateMenuActions()
 
     def updateMenuActions(self):
@@ -321,9 +323,8 @@ class PresetManager(GObject.Object, Loggable):
 
     def saveCurrentPreset(self, new_name=None):
         """Updates the current preset values from the widgets and saves it."""
-
         if not self.cur_preset:
-            self.createPreset(preset_name)
+            self.createPreset(new_name)
         if new_name:
             self._renameCurrentPreset(new_name)
         values = self.presets[self.cur_preset]
@@ -569,7 +570,6 @@ class EncodingTargetManager(PresetManager):
         target.save()
 
         self._add_target(target)
-        self.combo.set_active(len(self.combo.props.model) - 1)
 
     def select_preset(self, combo):
         """Selects preset from currently active row in @combo.