id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
2448	"<osm version=""null""> when saving a newly created OSM layer"	ulfl	team	"To reproduce:

Start JOSM, create a new OSM layer with File->New, draw something and save the result e.g. to xy.osm.

The saved file is invalid, the second line reads:

<osm version='null' generator='JOSM'>

"	defect	closed	minor		Core	latest	duplicate