+ %{$ibx->{unlock_subs}} = (%$u, %{$ibx->{unlock_subs}}) if $u;
+
+ # Linux::Inotify2::Watch::name matches if watches are the
+ # same, no point in replacing a watch of the same name
+ if ($cur->[1]->name eq $lock) {
+ $self->{on_unlock}->{$lock} = $ibx;
+ return;
+ }
+ # rare, name changed (v1 inbox converted to v2)