build

next/prev: fix a few bugs in `--conflict` #11892

Job	Run time
build (ubuntu-latest)	4m 7s
Build jj-lib without Git support	44s
build (macos-14)	3m 1s
build (windows-latest)	9m 24s
Check that MkDocs can build the docs	23s
build (ubuntu-latest, --all-features)	4m 59s
Check formatting	14s
cargo-deny (advisories)	22s
Clippy check	2m 22s
cargo-deny (bans licenses sources)	25s
Check that MkDocs can build the docs with Poetry 1.8	21s
Check protos	39s
	27m 1s

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