Fix annotation unparsing bug #345

Job	Run time
Test pre-commit console encoding	35s
Test Python 3.8 (ubuntu-latest)	53s
Test Python 3.9 (ubuntu-latest)	54s
Test Python 3.10 (ubuntu-latest)	53s
Test Python 3.11 (ubuntu-latest)	58s
Test Python 3.12 (ubuntu-latest)	19s
Test Python 3.8 (windows-latest)	1m 54s
Test Python 3.9 (windows-latest)	2m 8s
Test Python 3.10 (windows-latest)	2m 27s
Test Python 3.11 (windows-latest)	2m 25s
Test Python 3.12 (windows-latest)	56s
Test Python 3.8 (macOS-latest)	1m 12s
Test Python 3.9 (macOS-latest)	45s
Test Python 3.10 (macOS-latest)	41s
Test Python 3.11 (macOS-latest)	56s
Test Python 3.12 (macOS-latest)	15s
	18m 11s

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