Re: resolving ambiguity in action stamps (was: Everyone, please stop making my life more difficult)

[Stephen J. Turnbull]

Eric S. Raymond writes:

 > The problem case is this:
 > 
 > A <-- B <-- C <-- B <-- D
 >               \
 >                +--- B <-- E <- F
 > 
 > In this the minimal subgraph joining the clique is not totally ordered,
 > so we don't know how to uniquely order the Bs on the branches.
 > 
 > To solve this problem we need a unique order relation on the branch heads.

The branch heads *have* canonical names: the SHA1 of the commit.