fix instability in ordering of managed relationship input fields #1678

Job	Run time
ash-ci / mix igniter.upgrade	4s
ash-ci / MIX_ENV=test mix.compile	58s
ash-ci / REUSE compliance	10s
ash-ci / Report Mix Dependencies	11s
ash-ci / audit	53s
ash-ci / Community Files Check	3s
ash-ci / mix test	0s
ash-ci / MIX_ENV=dev mix.compile	0s
ash-ci / mix git_ops.check_message	0s
ash-ci / mix sobelow	0s
ash-ci / mix docs	0s
ash-ci / mix doctor --full --raise	0s
ash-ci / NIF ${{ matrix.nif }} - ${{ matrix.job.target }} (${{ matrix.job.os }})	0s
ash-ci / mix spark.cheat_sheets --check	0s
ash-ci / mix format --check-formatted	0s
ash-ci / mix credo --strict	0s
ash-ci / mix spark.formatter --check	0s
ash-ci / mix dialyzer	0s
ash-ci / mix deps.unlock --check-unused	0s
ash-ci / mix ash.codegen --check	0s
ash-ci / Deploy docs to GitHub pages.	0s
ash-ci / Release	0s
	2m 19s

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