Hello,

Thanks for paying attention to this. Unfortunately I can't submit new item in 
SVN's JIRA. Apart from discussion raised by my example can someone please fill 
an issue for this ? It's already identified by Daniel as a bug. Per his 
suggestion I have also rewritten the example into Win batch script.

Regards
Michal

-----Original Message-----
From: Philip Martin [mailto:philip.mar...@wandisco.com] 
Sent: Monday, February 22, 2016 6:24 PM
To: Bert Huijben
Cc: 'Daniel Shahaf'; 'Michal Matyl'; dev@subversion.apache.org; 
jcor...@apache.org; phi...@apache.org
Subject: merging adjacent changes

"Bert Huijben" <b...@qqmail.nl> writes:

> Personally I agree that I would like to see a text-conflict raised in 
> this specific case where the change regions touch each other. But then 
> there is that old discussion, ....

I added the test because we had already, perhaps inadvertently, implemented the 
behaviour.

Back in 2003 we didn't have 'svn resolve' so resolving a text conflict required 
the user to edit the file.  Now we have 'svn resolved' which may make resolving 
text conflicts easier.  Perhaps that allows us to change Subversion to create 
more conflicts?

We know merge is essentially imperfect or fuzzy, the question is where to draw 
the line.  Which, if any, of these cases should merge without conflict and what 
should the merged result be?

1.  common           first              second
    ancestor         branch             branch

    A                A                  A
    B                Bbr1               B
    C                C                  Cbr2
    D                D                  D


2.  common           first              second
    ancestor         branch             branch

    A                A                  A
    B                Bbr1               B
    C                new                new
    D                C                  C
                     D                  D

3.  common           first              second
    ancestor         branch             branch

    A                A                  A
    B                Bbr1               B
    C                new                new
    D                C                  Cbr2
                     D                  D

4.  common           first              second
    ancestor         branch             branch

    A                A                  A
    B                Bbr1               B
    C                newbr1             newbr2
    D                C                  Cbr2
                     D                  D

There are probably more cases.

--
Philip Martin
WANdisco

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