For reference, it looks like the corrupted 1.3.23 is larger than the working version for some reason:
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1 nobunagaota staff 1934931 May 21 12:19 1.3.23
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1 nobunagaota staff 1936085 May 21 11:11 broken-1.3.23
Nate,
would you like me to send the corrupted update to you in case you'd like to inspect it?