peg-rev and checkout

A user ran into a strange behavior with peg-revs and 'svn co' that I
don't understand.

URL doesn't exist in HEAD, but it does exist in r1722.

As expected, 'svn co URL' fails.
As expected, 'svn ls URL@1722' works.
As expected, 'svn co -r1722 URL' fails, because the command is trying
to trace URL@HEAD backwards into r1722, and URL@HEAD doesn't exist.

Unexpected: 'svn co URL@1722' fails. Huh?

The error message is something like, "<some parent path> not found in r2000".

My only guess is that somehow, after the user goes through the trouble
of specifying the *exact* coordinates of the thing to checkout, it
tries to locate the object in HEAD anyway? My hypothesis comes from
the fact that 'svn co -r1722 URL@1722' succeeds... which is a
ridiculously redundant syntax!

Can someone explain what's going on here? If 'svn ls URL@1722' works,
why ever shouldn't 'svn co URL@1722' work just as well?

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Received on Thu May 4 04:34:25 2006