patterns: Fix default coercion error on `transition_dep` #7891

Job	Run time
Get the latest prelude hash	3s
build (ubuntu-22.04, aarch64-unknown-linux-gnu, true)	11m 50s
build (ubuntu-22.04, aarch64-unknown-linux-musl, true)	12m 33s
build (ubuntu-22.04, x86_64-unknown-linux-gnu)	11m 36s
build (ubuntu-22.04, x86_64-unknown-linux-musl, true)	11m 27s
build (macos-13, aarch64-apple-darwin, true)	22m 33s
build (macos-13, x86_64-apple-darwin)	18m 44s
build (windows-2022, x86_64-pc-windows-msvc, true)	19m 10s
Publish buck2.build	2m 29s
Check if there's a release for this half of the month already	1s
Release `latest` tag	23s
Release bi-monthly tag	0s
	1h 50m 49s

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