FIX-#407: Make data put into MPI object store immutable #195

	name: ci-required
	on: pull_request
	concurrency:
	# Cancel other jobs in the same branch. We don't care whether CI passes
	# on old commits.
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true
	jobs:
	check-pr-title:
	runs-on: ubuntu-latest
	steps:
	- uses: Slashgear/[email protected]
	with:
	# NOTE: If you change the allowed prefixes here, update
	# the documentation about them in /docs/development/contributing.rst
	regexp: '^(?:FEAT\|DOCS\|FIX\|REFACTOR\|TEST\|PERF)-#\d+:'

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