Avoid deleting the source file when linking #90

Job	Run time
Type check	28s
Format and lint	16s
Test: Python 3.7 on ubuntu-20.04	30s
Test: Python 3.8 on ubuntu-20.04	24s
Test: Python 3.9 on ubuntu-20.04	21s
Test: Python 3.10 on ubuntu-20.04	20s
Test: Python 3.11 on ubuntu-20.04	22s
Test: Python 3.12 on ubuntu-20.04	22s
Test: Python 3.13 on ubuntu-20.04	29s
Test: Python pypy-3.9 on ubuntu-20.04	50s
Test: Python pypy-3.10 on ubuntu-20.04	51s
Test: Python 3.8 on macos-latest	1m 1s
Test: Python 3.9 on macos-latest	47s
Test: Python 3.10 on macos-latest	41s
Test: Python 3.11 on macos-latest	25s
Test: Python 3.12 on macos-latest	25s
Test: Python 3.13 on macos-latest	21s
Test: Python pypy-3.9 on macos-latest	49s
Test: Python pypy-3.10 on macos-latest	49s
Test: Python 3.8 on windows-latest	1m 15s
Test: Python 3.9 on windows-latest	56s
Test: Python 3.10 on windows-latest	1m 19s
Test: Python 3.11 on windows-latest	1m 19s
Test: Python 3.12 on windows-latest	1m 16s
Test: Python 3.13 on windows-latest	2m 8s
	18m 44s

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