dconf-editor: unable to edit keys using keyboard

[Vitaly]

Hello!
I can not edit key values in dconf-editor using keyboard:
-select row by arrow-up or arrow-down;
-move focus by arrow-rigth;
-try to edit by Enter, but instead of start-editing process I get next warnings:

for checkbuttons:
** (dconf-editor:19455): CRITICAL **: key_value_renderer_real_activate: assertion 'event != NULL' failed

for other cellrenderers:
** (dconf-editor:19455): CRITICAL **: key_value_renderer_real_start_editing: assertion 'event != NULL' failed
(dconf-editor:19455): Gtk-CRITICAL **: gtk_widget_get_style_context: assertion 'GTK_IS_WIDGET (widget)' failed
(dconf-editor:19455): Gtk-CRITICAL **: gtk_style_context_add_class: assertion 'GTK_IS_STYLE_CONTEXT (context)' failed

rgds,
Vitaly

[Jeremy Bícha (jbicha)]

dconf-editor is a separate package in Ubuntu 16.04+ so I'm reassigning.

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.