Hydra: Changing point instances transforms invalidates all the point prototypes

[dgovil]

Description of Issue

When moving point instances around, it causes invalidations for the entire set of point instances within that instancer inside a Hydra render delegate.

This seems reflected here in the code:

OpenUSD/pxr/usdImaging/usdImaging/pointInstancerAdapter.cpp

Line 830 in 9b0c13b

// XXX: Specifically disallow visibility and transform updates: in

System Information (OS, Hardware)

• macOS 15.1

Package Versions

• USD 24.3 -> 24.11

[jesschimein]

Filed as internal issue #USD-10416