Merge back feature branch with old 1.4 server fails since TortoiseSvn 1.6.8

Hello,

Our problem:

Since TortoiseSvn 1.6.8 we have an issue with reintegrating a feature
branch, using SVN server 1.4.2.

EXPECTATION:

We expect that the "Merge two different trees" function (respecting
ancenstry) merges the changes from the feature branch to the trunk,
without leading to conflicts. This works fine with TortoiseSVN 1.6.7 and
older. Note that apparently two 'empty' steps are completed after the
actual merge step, as seen from the screenshot made with 1.6.7.

PROBLEM:

In TortoiseSVN 1.6.8, 1.6.9 and 1.6.10, the "Merge two different trees"
function (respecting ancenstry) also performs three steps, the first of
which results in the local changes that we need. However, the second and
third step now perform another merge and a reverse merge, respectively.
These merges leave the files in the working copy in a conflicted state.

Additional information:

We use an old server version 1.4.2 so we don't have merge tracking.

For this reason I cannot use the "reintegrate a brach" option, but I use
the "Merge two different trees" option.

When I reintegrate a feature branch this way, it works fine with
TortoiseSvn 1.6.7

But the merge result is incorrect with TortoiseSvn 1.6.8 or later (also
tried it with 1.6.10)

At first the merge works fine, with a message such as:

- "Merging from https://MyServer/MyProject/trunk, revision 9266
to https://MyServer/MyProject/branch_ftr/UvCoolingOnStart, revision HEAD
into C:\LSW\WKS\ISi\MPM_trunk\Head, respecting ancestry"

However since TortoiseSvn 1.6.8 two addional steps are done which mess
up the merge, causing a lot of conflicts and reverting changes that
shouldn't be reverted:

- "Merging r9185 through r9276 C:\LSW\WKS\ISi\MPM_trunk\Head"

- "Reverse merging 92665 through 9185"

Note that:

- Revision 9185 is the creation revision of the feature branch

- Revision 9276 is the HEAD revision of the feature branch

See also the attached screenshots

I tried to see if this is a known conflict, but I cannot find any
results on that.
I hope someone on this e-mail list can help me out here, for now I'm
stuck to version 1.6.7 because we use feature branching a lot.

Regards,

Dennis Verheijen

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