diff --git a/crates/fj-core/src/objects/object_set.rs b/crates/fj-core/src/objects/object_set.rs
index 9f727f144..ed27a6010 100644
--- a/crates/fj-core/src/objects/object_set.rs
+++ b/crates/fj-core/src/objects/object_set.rs
@@ -28,10 +28,11 @@ impl<T> ObjectSet<T> {
     /// # Panics
     ///
     /// Panics, if the iterator contains duplicate `Handle`s.
-    pub fn new<H>(handles: impl IntoIterator<Item = H>) -> Self
+    pub fn new(
+        handles: impl IntoIterator<Item = impl Into<HandleWrapper<T>>>,
+    ) -> Self
     where
         T: Debug + Ord,
-        H: Into<HandleWrapper<T>>,
     {
         let mut added = BTreeSet::new();
         let mut inner = Vec::new();
@@ -150,14 +151,13 @@ impl<T> ObjectSet<T> {
     ///
     /// Panics, if the update results in a duplicate item.
     #[must_use]
-    pub fn replace<H>(
+    pub fn replace(
         &self,
         original: &Handle<T>,
-        replacements: impl IntoIterator<Item = H>,
+        replacements: impl IntoIterator<Item = impl Into<Handle<T>>>,
     ) -> Option<Self>
     where
         T: Debug + Ord,
-        H: Into<Handle<T>>,
     {
         let mut iter = self.iter().cloned().peekable();
 
@@ -268,18 +268,6 @@ mod tests {
         // shouldn't do that in this case.
     }
 
-    #[test]
-    fn deduplicate_with_hashset() {
-        let mut core = Core::new();
-
-        let bare_cycle = Cycle::new([]);
-        let cycle = bare_cycle.insert(&mut core);
-
-        let standard_set = HashSet::from([cycle.clone(), cycle.clone()]);
-
-        assert_eq!(standard_set, [cycle].into());
-    }
-
     #[test]
     fn object_set_from_handle_wrappers() {
         let mut core = Core::new();