Thanks Konstantin, that is very thorough information.
I will find the time and formulate a request to Git developers.
On Tuesday, November 17, 2015 at 3:59:36 PM UTC+2, Konstantin Khomoutov
> On Tue, 17 Nov 2015 00:06:19 -0800 (PST)
> > >> > see screen capture here: http://postimg.org/image/esgjyhk9j/
> > >> > had to black out some parts because of proprietary info...but I
> > >> > hope you get the gist.
> > >>
> > >> This "remote" stuff seems to be reachable from two tags: Alpha3
> > >> and Alpha2. What happens if you remove them? (Be sure to think
> > >> this operation through before carrying on with it.)
> > >>
> > > tried deleting them...changes nothing (except for the tags being
> > > gone)
> > Actually it did help! I forgot to delete one TAG....
> > Can you explain the rational behind this?
> Some theory first.
> Git has "refs" -- short for "references".
> There are two kinds of references: branches (actually, "heads" in Git
> parlance) and tags. Hence, references are named "thingies" which point
> to commits and are for humans to easily track those commits.
> Now there's the concept of commit reachability.
> As you know, a commit typically has at least one parent (merge commits
> have two or more). Thus child commits reference their parent commits.
> Another way to reference a commit is to have a ref (a tag or a branch)
> point to it. All commits in a Git repository form a graph; actually,
> any number of graphs. Each commit in a graph is either a "leaf" commit
> or is referenced by one or more child commits.
> Now back to your issue.
> You explicitly asked Git to show you all the refs via the "--all"
> command-line option to `git log`. This forced the `git log` to output
> the lines of history hanging off all the refs your repository had, so it
> dutifully rendered everything, including those subgraphs hanging off
> those "Alpha3" and "Alpha2" tags.
> One problem may be in suboptimal rendering which made you think the
> history "falls through" the initial commit on your "master" to the
> commit tagged "Alpha3". I've just recreated that same situation in a
> toy repo:
> % git log --graph --decorate --oneline --abbrev=commit --all
> * 2bb8 (tag: Alpha3) Alt: Third
> * 6fac Alt: Second
> * ddf6 Alt: First
> * 8fda (HEAD, master) Third
> * 4230 Second
> * 8764 First
> % git cat-file commit ddf6|grep -F parent
> In my case, the subgraph hanging off "Alpha3" got rendered above the one
> hanging off "master" but otherwise the problem exhibits yourself
> rather clearly: it may be hard to understand that ddf6 does not have
> 8fda as its parent.
> You might want to bring this issue with the Git developers -- see 
> on how to post to the main Git list. If you do this, be sure to
> include a link to this discussion in your mail, which is , but make
> sure you write an actual message with as narrow formulation of your
> problem as possible -- don't just drop a link to this discussion on
> them: no one will bother to follow it.
> 1. https://gist.github.com/tfnico/4441562
> 2. https://groups.google.com/d/topic/git-users/Q4LJVeO8haA/discussion
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