A file that exhibits this behaviour - signed by LO, then Word.
Untitled 1.odt (application/vnd.oasis.opendocument.text), 13.56 KB, created by Chris Rae [MSFT] on 2012-12-18 00:01:29 UTC
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Creator: Chris Rae [MSFT]
Created: 2012-12-18 00:01:29 UTC
Size: 13.56 KB

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Attachments on bug 58442: 71705 | 85605