inhibit: don't leave any obsolete commit visible after closing transaction We add a callback to wrap the transaction closure to identify commits that are obsolete and visible. We inhibit them to prevent the user to see instability in the UI.

evolve: apply prune update before creating obsolescence markers Prune used to compute the destination commit to update to after creating the obsolescence markers. This is a commit to prevent a bug that would occur with the changes in inhibit for transactions (next commit). Indeed, with that change in inhibit, when creating the obsolescence markers in prune, they would get inhibited right away and we wouldn't update to the first non obsolete parent but stay on the same node as its obsolescence would have been inhibited (bug).

test-inhibit: check graph after prune We want to ensure prune keep working even with inhibit.

test-inhibit: drop trailing white space

tests: make tests work on Mac OS wc -m adds spacing before the results, we trim them to make the test pass on Mac OS.

merge with stable

inhibit: ensure that no obsolete changesets are visible after a bookmark change When creating a bookmark, we could reveal obsolete changesets. We are inhibiting the obsolete changesets resulting from a bookmark change. There are two ways to record bookmark changes to disk and we wrap both.