The ->tag must be defined for a Mod, so simplify covering resolution

diff --git a/lib/LaTeX/TikZ/Set/Mod.pm b/lib/LaTeX/TikZ/Set/Mod.pm
index e98b98aecd579c4ada5ccaa10c52d355307f8927..f759b0de3ac1d805050440788d756fe1c3225185 100644 (file)
--- a/lib/LaTeX/TikZ/Set/Mod.pm
+++ b/lib/LaTeX/TikZ/Set/Mod.pm
@@ -88,14 +88,10 @@ MOD:
   for my $mod ($set->mods) {
    $has_layer = 1 if $ltml_tc->check($mod);
    my $tag = $mod->tag;
-   my @candidates;
-   if (defined $tag) {
-    my $old     = $mods{$tag};
-    @candidates = $old ? map $_->[0], @$old : ();
-   } else {
-    @candidates = values %mods;
+   my $old = $mods{$tag} || [];
+   for (@$old) {
+    next MOD if $_->[0]->cover($mod);
    }
-   $_->cover($mod) and next MOD for @candidates;
    push @{$mods{$tag}}, [ $mod, $last_mod++ ];
    push @mods,          $mod;
   }