Merge pull request #542 from SpiNNakerManchester/allow_overlap #1791

Job	Run time
call / tests (windows-latest, 3.12, tests)	1m 41s
call / validate (ubuntu-latest, 3.12, validate)	2m 19s
call / tests (windows-2019, 3.8, tests)	2m 20s
call / checks (ubuntu-latest, 3.13)	4s
call / tests (macos-latest, 3.12, tests)	56s
call / checks (ubuntu-24.04, 3.11)	1m 59s
call / tests (macos-12, 3.8, tests)	2m 16s
call / checks (ubuntu-latest, 3.10)	1m 54s
call / checks (ubuntu-22.04, 3.9)	2m 9s
call / checks (ubuntu-20.04, 3.8)	2m 7s
	17m 45s

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