[calls] calls-new-call-box: Only show origin combo box if there is a choice

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 179c844a80e1dfc889320decdd2300ffbd76e642
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Sat Aug 14 20:42:36 2021 +0200

    calls-new-call-box: Only show origin combo box if there is a choice

 src/calls-new-call-box.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/calls-new-call-box.c b/src/calls-new-call-box.c
index cdac2fd1..52972de1 100644
--- a/src/calls-new-call-box.c
+++ b/src/calls-new-call-box.c
@@ -223,6 +223,7 @@ calls_new_call_box_init (CallsNewCallBox *self)
 
   g_signal_connect_swapped (origins, "items-changed",
                             G_CALLBACK (origin_count_changed_cb), self);
+  origin_count_changed_cb (self);
 }