Revert "fix initializing indexed collection without content"

This reverts commit 4c546b0d33bf2410ef49940e68f0eafe0bfd750f.
Revert "Use arrangedContent instead of removeObject & insertAt to maintain order"

This reverts commit 853c628f0aae0739612233fec8216fb3ace8d27d.
build v0.0.9