Merge pull request #72 from SpiNNakerManchester/allow_different_parti… #272

Job	Run time
call / validate (ubuntu-latest, 3.12, validate)	1m 33s
call / checks (ubuntu-latest, 3.13)	1m 48s
call / tests (windows-latest, 3.12, tests)	2m 2s
call / checks (ubuntu-24.04, 3.11)	1m 57s
call / tests (windows-2019, 3.9, tests)	2m 12s
call / checks (ubuntu-latest, 3.10)	1m 53s
call / tests (macos-latest, 3.13, tests)	50s
call / checks (ubuntu-22.04, 3.9)	1m 21s
call / tests (macos-13, 3.9, tests)	1m 9s
call / checks (ubuntu-20.04, 3.8)	1m 30s
	16m 15s

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