id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
18797	Same layer name used multiple times	skyper	team	"==== What steps will reproduce the problem?
1. Have a data layer ""Data Layer 1""
1. save session with layer
1. restart JOSM and load session
1. create new data layer

==== What is the expected result?
New layer gets name ""Data Layer 2""

==== What happens instead?
Two layers with name ""Data Layer 1""

==== Please provide any additional information below. Attach a screenshot if possible.
Be careful, there could be several layers with name ""Data Layer"" + integer with no needs to start at 1 or have a order.

{{{
Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-02-26 10:50:27 +0100 (Wed, 26 Feb 2020)
Revision:15937
Build-Date:2020-02-26 09:52:41
URL:https://josm.openstreetmap.de/svn/trunk
}}}
"	defect	new	trivial		Core	latest		template_report data layer name session