[gnome-contacts] ContactList: right-click == checkbox toggle in selection mode.

[Niels De Graef <nielsdg src gnome org>]

commit 4d52db4d94ca6b5bf68d2de5b35283a76aac25af
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Mon Jan 22 22:35:03 2018 +0100

    ContactList: right-click == checkbox toggle in selection mode.
    
    This, together with the previous commit, fixes
    [bug 703201](https://bugzilla.gnome.org/show_bug.cgi?id=703201).

 src/contacts-contact-list.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/contacts-contact-list.vala b/src/contacts-contact-list.vala
index f45bb2f..950b990 100644
--- a/src/contacts-contact-list.vala
+++ b/src/contacts-contact-list.vala
@@ -272,7 +272,7 @@ public class Contacts.ContactList : ListBox {
     if (event.button == Gdk.BUTTON_SECONDARY) {
       var row = (ContactDataRow) get_row_at_y ((int) Math.round (event.y));
       select_row (row);
-      row.selector_button.active = (this.state != UiState.SELECTING);
+      row.selector_button.active = (this.state != UiState.SELECTING) || !row.selector_button.active;
     }
 
     return false;