History lost?

Say you have a branch B1, and you copy B1 to a new branch, B2.

Then B2 gets all kinds of messed up, so you delete B2 from the
repository and copy B1 to B2 again.

Then later, you want to "svn log" B2 and get revision history into B1
and further back. But it's not working - it goes part way back and
gives up.

Is this an accurate explanation of why "svn log" might not be able to go
back to the beginning of (repository) time?

Granted, any changes to B2 made prior to the delete would be lost, but I
can live with that.

If this would explain a loss of history, is there a reasonable way of
restoring the history chain?

Thanks!

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Received on Thu Nov 29 18:24:57 2007