RenderObject: Update bundle reference at correct point.

[Mugen87]

Related issue: -

Description

A minor fix in context of render bundles. The assignment of RenderObject.bundle must happen before needsRefresh() is executed to ensure the check inside NodeMaterialObserver has a valid bundle reference. This was only an issue in the first rendered frame of a render object but could lead to a wrong update.

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

	Before	After	Diff
WebGL	359.21 85.29	359.21 85.29	+0 B +0 B
WebGPU	623.24 173.14	623.24 173.14	+0 B +1 B
WebGPU Nodes	621.82 172.9	621.82 172.9	+0 B +1 B

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

	Before	After	Diff
WebGL	490.47 119.49	490.47 119.49	+0 B +0 B
WebGPU	689.9 186.31	689.9 186.31	+0 B -1 B
WebGPU Nodes	639.28 173.72	639.28 173.72	+0 B -1 B