Re: identical hashes on two branches, but holes in git log

> On Tue, May 19, 2015 at 09:01:10AM -0700, Junio C Hamano wrote:
>> Philippe De Muyter <phdm@macq.eu> writes:
>> 
>> > Trying to understand, I have eventually done "git log" on my branch and
>> > on v3.15 with the following commands :
>> >
>> > git log v3.15 --full-history --decorate=short | grep '^commit' > /tmp/3.15.commits
>> > git log --full-history --decorate=short | grep '^commit' > /tmp/mybranch.commits
>> 
>> Either
>> 
>>     git log --oneline v3.15..HEAD ;# show what I have not in theirs
>> 
>> or
>> 
>>     gitk v3.15...HEAD ;# show our differences graphically
>
> This shows the commits in my branch starting from the most recent common point,
> thus my commits, but I see differences in the files not explained by my commits,
> but by the fact that many older commits (between v3.13 and v3.14) are missing on
> my branch, but still in both branches I have a commit called v3.14 with the
> same hash.  Is that normal ?