fix(ecs): prevent duplicate archetype indices in lookup entries

1 files changed, 5 insertions, 0 deletions

diff --git a/ecs/src/component/storage.rs b/ecs/src/component/storage.rs
index 944beb3..f8b5b20 100644
--- a/ecs/src/component/storage.rs
+++ b/ecs/src/component/storage.rs
@@ -240,6 +240,11 @@ impl Storage
                 continue;
             }
 
+            // There shouldn't be duplicate archetype indices in the lookup entry
+            if lookup_entry.archetype_indices.contains(&archetype_index) {
+                continue;
+            }
+
             if lookup_entry.component_ids.is_subset(&comp_ids_set) {
                 lookup_entry.archetype_indices.push(archetype_index);
             }