objects with physics interpolation disabled aren't updated on the first frame

[retrotails]

Tested versions

bisected to #106244

System information

linux

Issue description

when physics interpolation is enabled in the project settings, but disabled for an object, it's visual position will not be updated the first time it is moved.
note that changing physics_interpolation/scene_traversal makes no difference, the problem persists.

Steps to reproduce

in the MRP, press ui_accept (enter) and the box should move 1 unit to the right. with the problem, the box doesn't move on the first key press, then moves two units on the next key press, and 1 unit for subsequent keypresses.

Minimal reproduction project (MRP)

fti_mrp.zip

[lawnjelly]

This should be fairly simple to fix, am away until Tues so can look at then.

UPDATE:
Actually got to look at this on my laptop while I'm away.
Turned out to be a fairly simple bug, the PR added an optimization which used an identity_xform flag, the trouble is this was updated before the new xform was applied.

This meant that in the particular case where a node was using identity xform, it would typically not update the visual xform for one frame when moved, or not update it at all if only moved once, because the flag still indicated it using an identity xform.

The fix should be available soon. 👍