id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
15926	Add option to save .osm as .osm.gz by default	jidanni	team	"JOSM can read .osm.gz files, so there should be an option to make it
also write them by default.

That would be much better than the workflow of: Downloading a area.
Then having to gzip it by hand (makes it only 1/10 the size!), and
then the next day, offline, JOSM can open the .osm or the .osm.gz both
just fine anyway."	enhancement	closed	minor		Core		wontfix