Fixes in the stock park editor that a multi-object edit (a paste, an undo,
a loaded park mod) runs into:
- Pasted objects lost their world link. A paste creates its objects one by
one and saves them when the whole edit completes, but the placements
runtime reconciles after every create and unlinked rows whose id was not
saved yet. Every create unlinked the ones before it: only the last pasted
object could be selected, moved or deleted, and deleting the others
removed them from the layout but left them standing in the world. The
reconcile now counts the editor's pending layout as saved.
- Scale was lost on paste, undo and park-mod load. The native create recipe
has no scale lane, so a created object spawns at 1x. Only the placement
preview resized it afterwards; a create step with a scale now becomes a
move, verified by the server tick's readback like any move.
- Scale was lost on level reload. Restored objects spawn at 1x and the
pose poll then saved 1x over the saved scale. Restores with a scale are
resized on the next server tick, and the poll leaves them alone until the
resize is read back.
- Delete did nothing with several objects selected. Delete (key or button)
now removes the whole selection as one edit and one undo step.
Tests: the transaction fixture's create now spawns at 1x like the game and
reconciles after every create like placement_finish_batch; new checks
cover pasting a scaled group, every pasted object keeping its link, moving
and rotating a pasted group, and multi-delete with undo.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
