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[ProBuilder] Editor slows down when exiting the Play Mode or Undoing actions on Beziers

Package: Probuilder


Reproduction steps:
1. Open the attached project
2. Open Assets/ProBuilder Beziew Prefab Repro scene
3. Enter the Play Mode
4. Exit the Play Mode

Expected result: Play Mode is stopped after a few seconds
Actual result: Play Mode is stopped after a 20+ seconds

Reproducible with: 4.5.2, 5.0.3, 5.0.4 (2019.4.35f1, 2020.3.28f1, 2021.2.11f1, 2022.1.0b7, 2022.2.0a4)

Note: Reproducible on both macOS and Windows

  1. Resolution Note:

    This bug is a known issue from ProBuilder by working with Prefabs.
    A feature request has been done to change the way probuilder meshes are stored and are working with prefabs.

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