completion: teach absorb and bookmark move about revisions #16846

Job	Run time
Build jj-lib without Git support	46s
Check protos	25s
build (ubuntu-latest)	5m 7s
cargo-deny (advisories)	23s
build (macos-13)	9m 3s
Clippy check	2m 43s
cargo-deny (bans licenses sources)	25s
build (macos-14)	5m 13s
Check that MkDocs can build the docs	8s
build (windows-latest)	10m 20s
Check that MkDocs can build the docs with latest Python and uv	15s
build (ubuntu-latest, --all-features)	6m 1s
Check formatting	15s
	41m 4s

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