[gnome-calendar] date-chooser: Update combined-choice on date changes

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 80d803d1251e69f0f5ad0aa35550e182a4e487e7
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Oct 5 15:30:02 2022 +0200

    date-chooser: Update combined-choice on date changes
    
    Otherwise the header will not reflect the active date.
    
    https://gitlab.gnome.org/GNOME/gnome-calendar/-/issues/876

 src/gui/event-editor/gcal-date-chooser.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/gui/event-editor/gcal-date-chooser.c b/src/gui/event-editor/gcal-date-chooser.c
index 2c0cd39f..bb169eb0 100644
--- a/src/gui/event-editor/gcal-date-chooser.c
+++ b/src/gui/event-editor/gcal-date-chooser.c
@@ -473,6 +473,7 @@ gcal_date_chooser_set_date (GcalView  *view,
     {
       gcal_multi_choice_set_value (GCAL_MULTI_CHOICE (self->year_choice), y2);
       gcal_multi_choice_set_value (GCAL_MULTI_CHOICE (self->month_choice), m2 - 1);
+      gcal_multi_choice_set_value (GCAL_MULTI_CHOICE (self->combined_choice), y2 * 12 + m2 - 1);
       calendar_compute_days (self);
       gcal_timeline_subscriber_range_changed (GCAL_TIMELINE_SUBSCRIBER (self));
     }