[Zikes]

Two commits touching the same file, represented by the identifier at the end of the rebase's commit line. If you look at each file as a column, you can see which commits would clash.

[pimlottc]

Potentially clash; the commits may touch completely different parts of the same file without conflict.

[branchless]

This is the main prize. Using emacs + magit I can rebase and look at per commit files whilst having a buffer open to re-order commits.

In fact magit could probably do some of this with a hook on reordering commits which would not require more git metadata.

I'm not sure I care about any of this though as if I do rebase, reorder and then hit a conflict I can't resolve I can always abort the rebase.

[koreno]

True that!

My original idea was to somehow show the actual conflicts, but then I figured this gets the desired 80% for 2% of the effort...