diff --git a/library/modules/Items.cpp b/library/modules/Items.cpp
index 0c29d851b..fe7eb6942 100644
--- a/library/modules/Items.cpp
+++ b/library/modules/Items.cpp
@@ -1369,9 +1369,10 @@ int32_t Items::createItem(df::item_type item_type, int16_t item_subtype, int16_t
     vector<df::item*> out_items;
     vector<df::reaction_reagent*> in_reag;
     vector<df::item*> in_items;
+    vector<void*> unk;
 
     df::enums::game_type::game_type type = *df::global::gametype;
-    prod->produce(unit, &out_items, &in_reag, &in_items, 1, job_skill::NONE,
+    prod->produce(unit, &unk, &out_items, &in_reag, &in_items, 1, job_skill::NONE,
             df::historical_entity::find(unit->civ_id),
             ((type == df::enums::game_type::DWARF_MAIN) || (type == df::enums::game_type::DWARF_RECLAIM)) ? df::world_site::find(df::global::ui->site_id) : NULL);
     if ( out_items.size() != 1 )
diff --git a/library/xml b/library/xml
index 6e2e8731d..36f94c0fc 160000
--- a/library/xml
+++ b/library/xml
@@ -1 +1 @@
-Subproject commit 6e2e8731d2c10a4a5394046ae48cc0cd16e9a049
+Subproject commit 36f94c0fcf09f0985595c7b9c9ad0c7170beed2d
diff --git a/plugins/add-spatter.cpp b/plugins/add-spatter.cpp
index cb2858d06..60bcce38f 100644
--- a/plugins/add-spatter.cpp
+++ b/plugins/add-spatter.cpp
@@ -243,7 +243,9 @@ struct product_hook : improvement_product {
 
     DEFINE_VMETHOD_INTERPOSE(
         void, produce,
-        (df::unit *unit, std::vector<df::item*> *out_items,
+        (df::unit *unit,
+         std::vector<void*> *unk,
+         std::vector<df::item*> *out_items,
          std::vector<df::reaction_reagent*> *in_reag,
          std::vector<df::item*> *in_items,
          int32_t quantity, df::job_skill skill,
@@ -293,7 +295,7 @@ struct product_hook : improvement_product {
             return;
         }
 
-        INTERPOSE_NEXT(produce)(unit, out_items, in_reag, in_items, quantity, skill, entity, site);
+        INTERPOSE_NEXT(produce)(unit, unk, out_items, in_reag, in_items, quantity, skill, entity, site);
     }
 };
 
diff --git a/plugins/createitem.cpp b/plugins/createitem.cpp
index da793ac0d..8c71dda40 100644
--- a/plugins/createitem.cpp
+++ b/plugins/createitem.cpp
@@ -73,6 +73,7 @@ bool makeItem (df::reaction_product_itemst *prod, df::unit *unit, bool second_it
     vector<df::item *> out_items;
     vector<df::reaction_reagent *> in_reag;
     vector<df::item *> in_items;
+    vector<void*> unk;
     bool is_gloves = (prod->item_type == item_type::GLOVES);
     bool is_shoes = (prod->item_type == item_type::SHOES);
 
@@ -83,7 +84,7 @@ bool makeItem (df::reaction_product_itemst *prod, df::unit *unit, bool second_it
     if (dest_building != -1)
         building = df::building::find(dest_building);
 
-    prod->produce(unit, &out_items, &in_reag, &in_items, 1, job_skill::NONE,
+    prod->produce(unit, &unk, &out_items, &in_reag, &in_items, 1, job_skill::NONE,
         df::historical_entity::find(unit->civ_id),
         (World::isFortressMode()) ? df::world_site::find(ui->site_id) : NULL);
     if (!out_items.size())
diff --git a/plugins/diggingInvaders/assignJob.cpp b/plugins/diggingInvaders/assignJob.cpp
index 57aa6ed6f..94acbd988 100644
--- a/plugins/diggingInvaders/assignJob.cpp
+++ b/plugins/diggingInvaders/assignJob.cpp
@@ -255,7 +255,8 @@ int32_t assignJob(color_ostream& out, Edge firstImportantEdge, unordered_map<df:
             vector<df::item*> out_items;
             vector<df::reaction_reagent*> in_reag;
             vector<df::item*> in_items;
-            prod->produce(firstInvader, &out_items, &in_reag, &in_items, 1, df::job_skill::NONE,
+            vector<void*> unk;
+            prod->produce(firstInvader, &unk, &out_items, &in_reag, &in_items, 1, df::job_skill::NONE,
                 df::historical_entity::find(firstInvader->civ_id),
                 df::world_site::find(df::global::ui->site_id));
 
diff --git a/plugins/eventful.cpp b/plugins/eventful.cpp
index 1b9d228bc..01537f57e 100644
--- a/plugins/eventful.cpp
+++ b/plugins/eventful.cpp
@@ -309,7 +309,9 @@ struct product_hook : item_product {
 
     DEFINE_VMETHOD_INTERPOSE(
         void, produce,
-        (df::unit *unit, std::vector<df::item*> *out_items,
+        (df::unit *unit,
+         std::vector<void*> *unk,
+         std::vector<df::item*> *out_items,
          std::vector<df::reaction_reagent*> *in_reag,
          std::vector<df::item*> *in_items,
          int32_t quantity, df::job_skill skill,
@@ -318,7 +320,7 @@ struct product_hook : item_product {
         color_ostream_proxy out(Core::getInstance().getConsole());
         auto product = products[this];
         if ( !product ) {
-            INTERPOSE_NEXT(produce)(unit, out_items, in_reag, in_items, quantity, skill, entity, site);
+            INTERPOSE_NEXT(produce)(unit, unk, out_items, in_reag, in_items, quantity, skill, entity, site);
             return;
         }
         df::reaction* this_reaction=product->react;
@@ -329,7 +331,7 @@ struct product_hook : item_product {
             return;
 
         size_t out_item_count = out_items->size();
-        INTERPOSE_NEXT(produce)(unit, out_items, in_reag, in_items, quantity, skill, entity, site);
+        INTERPOSE_NEXT(produce)(unit, unk, out_items, in_reag, in_items, quantity, skill, entity, site);
         if ( out_items->size() == out_item_count )
             return;
         //if it produced something, call the scripts