Reproduction steps:
1. Open the attached “repro“ project

Expected result: The project opens successfully
Actual result: The Editor crashes (2023.1.0a23). The Editor hangs on Initial Asset Database Refresh (2020.3.43f1, 2021.3.16f1, 2022.2.1f1)

Reproducible with: 2020.3.43f1, 2021.3.16f1, 2022.2.1f1, 2023.1.0a23

Reproduced on: Windows 10 Pro

First few lines of the stack trace:
{{0x00007FF96E44EFC0 (Unity) UnityYAML::Document::GetValueForKey }}
{{0x00007FF96E472BE3 (Unity) MetaFileHandling::ExtractPropertiesFromYAMLDocument }}
{{0x00007FF96E474A2B (Unity) MetaFileHandling::MetaFileAccessorWithProperties::GetProperties }}
{{0x00007FF96E4C52E5 (Unity) FileHasher::Hasher }}
{{0x00007FF96CF49E7D (Unity) Thread::RunThreadWrapper}}