id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
9281	download of relation members sometimes does not notice a (suspected) download error	aceman	aceman	"I was using JOSM on a congested network connection. On many upload/download operations I got proper timeout error dialogs. I just retried the operation until it succeeded.

But I noticed one case where this seems to not work properly.
When opening a relation (in this case type=route of a bus) I clicked the button to download all missing members. Everything looked fine. Just that when the members of the relation got rendered on the editing area, I noticed the WAYS are missing (a bus route relation contains bus stops (usually nodes) and ways on which the bus operates (may be across whole city)). So many nodes along the bus route were rendered fine (pedestrian crossings and traffic signals that were members of the roads and ways). But the actual roads (ways) were not shown. I also enabled a layer that overlays a line to outline the bus route in the street network. In this layer, the route was wrong, not on the expected roads, but it went to the top left corner of the editing window. It appears to me as if the downloaded (or not) ways had coordinates of zero or undefined. JOSM didn't crash or something but I intermediately restarted it when this happened. This happened to me several times (in about 10% of cases).

So I suspect there is a path in this members download code where JOSM does not detect some objects were not properly downloaded. Can you please check it?"	defect	closed	normal		Core	latest	irreproducible