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Fix potential hang after restoring keyframe due to invalid blocklist pointers. #503

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Fix potential hang after restoring keyframe due to invalid blocklist pointers. #503

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Commits on Aug 21, 2024

  1. Fix potential hang after restoring keyframe due to invalid blocklist … 

    …pointers.

When restoring a keyframe, the blockmap is not cleared and blocklist pointers are modified during P_UnArchiveThinkers. The blockmap is then restored in UnArchiveBlockLinks, but this can leave blocklist pointers in an invalid state.

This can then lead to a hang later when the blocklist is iterated and may get stuck in an infinite loop.
    @PeterN
    PeterN committed Aug 21, 2024
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