On Tue, 17 Nov 2015 00:06:19 -0800 (PST)
Daniel Doron <danielmeirdo...@gmail.com> wrote:
> >> > 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
% 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.
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