reported by naddy

This brings the rest of the regression test scripts in line with patch.sh.

Always update to the specified branch even if the branch is already rebased (no commits needed to be rebased, and the branch does not need a fast forward). With the old behavior of erroring and staying on the current branch, I sometimes found myself ignoring the error message, treating it as information and assuming the branch update, and later on committing on top of origin/main instead of the main branch. feedback and ok stsp

ok jrick

ok stsp@

ok semarie

This was a long-standing and very annoying bug. The two xfail tests in the cherrypick test suite are passing now.

Create automatic "backup" references which ensure that objects from the pre-rebase or pre-histedit state remain in the repository. A new -l option for 'got rebase' and 'got histedit' lists old commits. This makes it easier to recover from botched rebase or histedit operations. Removal of such objects currently requires got ref -d and git-gc. This will be made more convenient in the future. testing and ok jrick

This should always be correct, since rebase and histedit start out with a clean and single-base-commit worktree, and end up committing all changes across the entire work tree when they are successful. tested by jrick and myself

ok stsp

Previous default output remains when test cases are run individually. ok tracey

ok tracey

ok millert@

This makes it more apparent which commit contained the conflicting change. The new output looks like this: C sys/dev/pci/if_iwm.c 8a98d848a1a5 -> merge conflict: properly modify station queues got: conflicts must be resolved before rebasing can continue

ok tracey