SVN root path of a repository has moved without reason, how to fix?

Question

This is a tricky one, I don't know why or how, I just know it is done and I want to fix it!

I have a SVN repository which was healthy until a couple of weeks.

That was the content until then:

\_ iSeries
\_ winunix

But actually, here is what everyone obtain while checkouting:

\_ conf
\_ db
\_ hooks
\_ locks
\_ Desktop.ini
\_ format
\_ README.txt
\_ svn.ico
\_ FOO
   \_ iSeries
   \_ winunix

You see, it looks like the content of 1 level ahead + some files.

I'm quite sure one user made this mess, and I am curious to know how.

But I'm searching for a solution in priority.

Do I need to fix it by client side moving, deleting, commiting? Or is there another simple way?

Here is a dump of the broken history

r749 | (no author) | (no date) | 1 line

r748 | (no author) | (no date) | 1 line

r747 | (no author) | (no date) | 1 line

r746 | (no author) | (no date) | 1 line

...

It's a mess!