id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
6873	[Patch] Layers merge compatibility check should be mutual	Don-vip	team	"To enable or not layers merge, [source:/trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java LayerListDialog] currently checks only if one layer accepts to be merged with another.

This should be a reciprocal check, as it forbids for example, with the current implementation to define its own layer class extending OsmDataLayer without having it automatically potentially be merged with another OsmDataLayer (this is something a plugin writer would not want).

Please find attached a patch that performs a mutual check."	defect	closed	normal		Core	latest	fixed