Post

jj run allows you to run a command over a set of changes, each with their own private working copy; the commands may update the working copy and changes/conflicts are propagated accordingly, e.g., jj run -- cargo check --all-features or jj run --cargo fix behaves as one might expect

Added a forks() revset function that yields all commits with more than 1 child

jj git fetch now rebases the descendants of revisions that were rewritten based on their change IDs. Previously, when multiple bookmarked revisions existed in a stack, those rewritten revisions and their descendants wouldn't always be rebased. Note that immutable descendants will not be rebased