id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
12393	[patch] Fix parsing note hiding events	ToeBee	Don-vip	"I just tried to open up the latest planet note dump and hit an exception while parsing. The problem was with this note: http://www.openstreetmap.org/note/233775

It was mistakenly hidden which generated a comment element with a ""hidden"" action which JOSM doesn't know about. Interestingly, there is no unhide comment, just a reopen. The full note XML looks like this:
{{{
#!xml
<note id=""233775"" lat=""48.2411985"" lon=""-122.3744820"" created_at=""2014-08-31T17:13:29Z"" closed_at=""2015-09-06T23:35:14Z"">
  <comment action=""opened"" timestamp=""2014-08-31T17:13:29Z"" uid=""7247"" user=""goldfndr"">Jump Start Espresso | 26930</comment>
  <comment action=""hidden"" timestamp=""2015-09-06T23:34:26Z"" uid=""355617"" user=""pnorman""></comment>
  <comment action=""reopened"" timestamp=""2015-09-06T23:34:38Z"" uid=""355617"" user=""pnorman""></comment>
  <comment action=""closed"" timestamp=""2015-09-06T23:35:14Z"" uid=""355617"" user=""pnorman"">mapped, but inadvertently hid the note</comment>
</note>
}}}

Anyway, here is a patch to add the ""hidden"" option to the enum in NoteComment.java"	defect	closed	normal	16.02	Core notes	tested	fixed	hidden