Git clone index-pack failed

[Kevin Hilton]

Trying to clone gnupg repository on cygwin which I've done many times in
the past, but this is what I'm getting:

$ git clone git://git.gnupg.org/gnupg.git
Cloning into 'gnupg'...
fatal: index-pack failed

I've even tried:
$ git clone git://git.gnupg.org/gnupg.git --depth=1
Cloning into 'gnupg'...
fatal: index-pack failed

I'm not sure what I should be trying at this point.  Frustrating.
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