dense should be set at index

CHANGELOG.md

@@ -11,7 +11,8 @@ The format is based on [Keep a Changelog][kac], and this project adheres to
 ## [Unreleased]
 
 -   `[world]`:
-    -   Added `world:range` to allow for creating
+    -   Added `world:range` to restrict entity range
+    -       Changed `world:entity` to accept the overload to create an entity at the desired index
     -   Changed `world:clear` to also look through the component record for the cleared `ID`
         -   Removes the cleared ID from every entity that has it
     -   Changed entity ID layouts by putting the index in the lower bits, which should make every world function 1-5 nanoseconds faster

jecs.luau

@@ -778,6 +778,7 @@ local function world_entity(world: ecs_world_t, entity: i53?): i53
 			local any = dense_array[dense]
 			if any == entity then
 				if alive_count > dense then
+					r.dense = dense
 					return entity
 				end
 				local e_swap = dense_array[alive_count]