Fix: Prevent render list corruption during iteration

[seer-by-sentry]

Fixes CLIENT-3YX. The issue was that: List iteration's Remove_Head dereferences freed MultiListNodeClass after render hooks or Render() modify the list, causing an access violation.

• Snapshots render objects into a temporary vector before processing.
• Prevents render hook callbacks (Pre_Render/Post_Render) from corrupting the sort list's internal linked structure.
• Addresses potential access violations that could occur during list iteration if modified by render hooks.

This fix was generated by Seer in Sentry, triggered automatically. 👁️ Run ID: 11452868

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