evolve: pass revisions as strings to commands.*() It's usually fine to pass integer revisions to e.g. commands.update(), but when directaccess is enabled, it attempts to parse it a revset, which fails.

tests: rename test-evolve-abort.t to test-evolve-abort-orphan.t We renamed the test file because it contains all the cases related to orphan resolution. Now we care about divergence resolution too and hence we must have separate specific test files for each type.

branching: merge with branch for stable