Author: iandees
[Added to the original trac issue at 1.59pm, Friday, 24th February 2012]

This diff should not be applied to ogr2osm because it creates a logically invalid OSM file. version and timestamp attributes should not exist in an OSM file until it has been uploaded to the OSM server.

Author: JoshD
[Added to the original trac issue at 6.52pm, Friday, 24th February 2012]

Replying to [comment:1 iandees]:

This diff should not be applied to ogr2osm because it creates a logically invalid OSM file. version and timestamp attributes should not exist in an OSM file until it has been uploaded to the OSM server.

I would agree, though I must admit I've used sed to add fake metadata then strip it out so I could use osmosis. Ah, just saw #4243 to change osmosis to accept data without metadata.