Fix account linking

Closes #153 (closed), #158 (closed), #147 (closed)

pallets/identity/src/lib.rs

@@ -454,6 +454,7 @@ pub mod pallet {
             frame_system::Pallet::<T>::inc_sufficients(&idty_value.owner_key);
             IdentityIndexOf::<T>::insert(&idty_value.owner_key, idty_index);
             Identities::<T>::insert(idty_index, idty_value);
+            Self::do_link_account(new_key.clone(), idty_index);
             Self::deposit_event(Event::IdtyChangedOwnerKey {
                 idty_index,
                 new_owner_key: new_key.clone(),