[dconf-editor] Fix commit 19239e65df regarding root_button.

[Arnaud B. <arnaudb src gnome org>]

commit 3ebbdf109d76835e6c4b6c98d3e19f586b093bff
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sun Sep 23 15:43:15 2018 +0200

    Fix commit 19239e65df regarding root_button.

 editor/pathbar.vala | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/editor/pathbar.vala b/editor/pathbar.vala
index 6dd9572..6ac92b9 100644
--- a/editor/pathbar.vala
+++ b/editor/pathbar.vala
@@ -59,7 +59,11 @@ private class PathBar : Box
         if (type == ViewType.SEARCH)
             return;
 
+        _set_path (type, path);
         update_active_button_cursor (type, ref active_button);
+    }
+    private void _set_path (ViewType type, string path)
+    {
         update_config_style_class (type == ViewType.CONFIG, get_style_context ());  // TODO create 
gtk_style_context_toggle_class()
 
         activate_item (root_button, path == "/");