Corrupt Clear.snap and demo.snap on Leopard

[Galen]

I've just downloaded and installed Self for the first time on my
PowerMac G5 running Leopard 10.5.8.
At the shell prompt, the VM seems to work:
$ selfSelf Virtual Machine Version 4.1.13, Sat 22 Nov 03 15:04:49 Mac
OSXCopyright 1989-2003: The Self Group (type _Credits for credits)
for PPC:  FastMapTest = falsefor PPC:  LogVMMessages = truefor PPC: 
PrintScriptName  = truefor PPC:  Inline = truefor PPC: 
SICDeferUncommonBranches = falsefor PPC:  SICReplaceOnStack = falsefor
PPC:  SaveOutgoingArgumentsOfPatchedFrames = trueVM#^D$
But if I try to load a snapshot, either Clean.snap or demo.snap, I get
this:
$  self -s /library/self/0/Demo-4.4.snapSelf VM fatal error
(/Users/russellallen/Git-All/vm/mac_osx/vm_project/../../src/any/memory/\
universe.cpp, line 544): Snapshot is corrupt near: New generation, file
position: 0xffffffff
VM Version: 4.1.13, Sat 22 Nov 03 15:04:49 Mac OSX
Self process 19263 on GLTMac-2.local has crashed.Do you want to:   1)
Quit Self (optionally attempting to write a snapshot)   2) Try to print
the Self stack   3) Try to return to the Self prompt   4) Force a core
dump   5) Print the interrupted context registersYour choice: 1Enter
snapshot name (hit return to omit snapshot) > No snapshot specified,
will skip this step$
Some google searching turned up a problem that at first glance looked
similar, but it appeared to be Windows-specific. It had to do with unix
vs. windows line termination.
Ideas on this one?
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