id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
12250	Error when loading session containing layer converted from .gpx	Math1985	Math1985	"When you are opening a prior saved session that contains a layer that is a gpx converted to data layer, JOSM gives an error and does not open the layer.

Steps to reproduce:
* Open .gpx file
* Rightclick convert to data layer
* File - Save session as
* Close and reopen JOSM
* Open session

Now you get the following error:
Error loading layer
Could not load layer 1 'Converted from: Markers from favourites.gpx'.
Error is: File ""/home/matthijs/tmp/favourites.gpx.osm"" does not exist"	defect	closed	normal	15.12	Core		fixed	session gpx