Code review comment for lp:~guilhem-bichot/bzr/bzr-pull-verbose-shows-tip-before-pull

I think you can get bitten once and you learn how valuable a trunk with
append_revisions_only set is. The case you outline above can only occur
with a branch shared between several devs that doesn't try to preserve
a linear history on that branch.

Trying to revnos in such a context is bound to fail.

As a UI rule, we don't show revids until required, I think this patch deserves
the exception (but it's activated by -v so one can argue that it's required :)
since some branches doesn't have a linear history, but not
displaying the revno at all, will be a violation of this rule.