Fix duplicate references in `Scene.mobjects` after `ReplacementTransform` with existing target mobject#4242

chopan050 merged 6 commits intoManimCommunity:mainManimCommunity/manim:mainfrom

irvanalhaq9:fix-duplicate-reference-in-replacement-transformirvanalhaq9/manim:fix-duplicate-reference-in-replacement-transformCopy head branch name to clipboard