diff options
| -rw-r--r-- | luatexbase-attr.dtx | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/luatexbase-attr.dtx b/luatexbase-attr.dtx index ed60cf7..99b853a 100644 --- a/luatexbase-attr.dtx +++ b/luatexbase-attr.dtx @@ -539,7 +539,10 @@ local new_user_whatsit = function (name, package) --- unit -> node_t local generator = function (proto) local res - if proto then + if proto + and proto.id == whatsit_t + and proto.subtype == user_defined_t + then local proto_id = proto.user_id if proto_id ~= id then --- mismatch warning("overriding user_id %d of whatsit prototype (now: %d)", |