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strange merge conflict wrt. keywords

From: Becker, Thomas <Thomas.Becker_at_torex.com>
Date: Tue, 26 Jul 2011 13:08:35 +0100



We encountered a strange merge conflict:


A branch was created from trunk, nothing was ever committed to this
branch and this branch was never the source of a merge. After some time,
when merging from trunk to the freshly checked-out branch we got a text
conflict for a particular file.


It turned out that the trunk version of this file had substituted
keywords in the repository when the branch was created. With the next
commit on trunk this changed back to the un-expanded forms.


The change of the revision where the substituted keywords appeared in
the repository was a move of three files in order to change an upper
case letter to lower case in the file names. However, the substituted
keywords appeared only in one of the files. The svn:keywords property
was "Id Date Revision Author URL" for all three files in all revisions.


My assumption is that when doing the merge from trunk to branch the
keyword line is subject to an incoming change (because they changed back
to the generic form on trunk) as well as to local substitution which
leads to the observed conflict.


My questions now are:

- Is this the expected behaviour or should incoming changes on
keywords be ignored?

- How could the substituted keyword get into the repository?


For the revision where the substituted keywords appear in the repository
we used Windows clients and server (Visual SVN) in whatever version was
recent in January 2011. The merge conflict can be observed with Linux
and Windows clients in various 1.6 versions.






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Received on 2011-07-26 14:09:57 CEST

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