diff --git a/develop/untests/registry_untests.lua b/develop/untests/registry_untests.lua
index e5d150f..e4a9788 100644
--- a/develop/untests/registry_untests.lua
+++ b/develop/untests/registry_untests.lua
@@ -78,23 +78,29 @@ do
     local e = evo.registry.entity()
 
     assert(not e:assign(f, 42))
-
+    assert(not e:has(f))
     assert(e:get(f) == nil)
     assert(e:get(f, 42) == 42)
 
     assert(e:insert(f, 84))
-
+    assert(e:has(f))
     assert(e:get(f) == 84)
     assert(e:get(f, 42) == 84)
 
-    assert(not e:insert(f, 42))
-    assert(e:get(f) == 42)
+    assert(not e:insert(f, 21))
+    assert(e:has(f))
+    assert(e:get(f) == 84)
+    assert(e:get(f, 42) == 84)
 
     assert(e:assign(f))
+    assert(e:has(f))
     assert(e:get(f) == true)
+    assert(e:get(f, 42) == true)
 
-    e:assign(f, 21)
+    assert(e:assign(f, 21))
+    assert(e:has(f))
     assert(e:get(f) == 21)
+    assert(e:get(f, 42) == 21)
 end
 
 do
diff --git a/evolved/registry.lua b/evolved/registry.lua
index 1bbabfe..c0e05ac 100644
--- a/evolved/registry.lua
+++ b/evolved/registry.lua
@@ -380,8 +380,6 @@ function registry.insert(entity, fragment, component)
     local new_chunk = __chunk_with_fragment(old_chunk, fragment)
 
     if old_chunk == new_chunk then
-        local chunk_components = new_chunk.__components[fragment]
-        chunk_components[entity.__index_in_chunk] = component
         return false
     end