id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
11891	unable to merge more than two data layers	malenki	team	"In older versions of JOSM one could select three or more data layers and merge them into one layer.
With up-to-date versions this is no longer possible. 
E.g. when I select the layers 14, 13, 12 and 11, press ctrl-m, select layer 11 as destination and execute, the layers 13, 12 and 11 remain.
Experienced with r8788 and earlier versions.
A guess: Maybe this issue was introduced when the really useful gamma adjust function was added?"	defect	closed	normal	15.09	Core	latest	fixed	regression