wrong error for opening hour validation

[wouterv.dplas@…]

What steps will reproduce the problem?

1. make a note
2. add opening_hours=mo gesloten; tu-fr 09:00-17:00
3. do a validation

What is the expected result?
Neem de engelse afkorting "<ok>" voor "<ko>" alstublieft.
Neem de engelse afkorting "off" voor "gesloten" alstublieft.
form ​http://josm.openstreetmap.de/browser/josm/trunk/data/validator/opening_hours.js?rev=7046
What happens instead?
​http://prntscr.com/4lsjmj
Please provide any additional information below. Attach a screenshot if
possible.
i think this needs to be diverent

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-08-31 21:55:55
Last Changed Author: Don-vip
Revision: 7480
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-08-31 23:51:24 +0200 (Sun, 31 Aug 2014)
Last Changed Rev: 7480

Identification: JOSM/1.5 (7480 nl) Windows 7 64-Bit
Memory Usage: 247 MB / 247 MB (52 MB allocated, but free)
Java version: 1.7.0_45, Oracle Corporation, Java HotSpot(TM) Client VM
Dataset consistency test: No problems found

Plugins:
- PicLayer (30436)
- buildings_tools (30485)
- dataimport (30416)
- geotools (30569)
- imagery_offset_db (30534)
- jts (30416)
- notes (v0.9.4)
- opendata (30607)
- pdfimport (30416)
- tag2link (30416)
- turnrestrictions (30454)
- utilsplugin2 (30460)
- wikipedia (30449)

Last errors/warnings:
- E: Error header: Precondition failed: Node 2808267323 is still used by ways 276205627,276205723.
- E: org.openstreetmap.josm.io.OsmApiException: ResponseCode=412, Error Header=<Precondition failed: Node 2808267323 is still used by ways 276205627,276205723.>
- W: java.io.IOException: Server returned HTTP response code: 412 for URL: https://api.openstreetmap.org/api/0.6/changeset/25367147/upload. Oorzaak: java.io.IOException: Server returned HTTP response code: 412 for URL: https://api.openstreetmap.org/api/0.6/changeset/25367147/upload
- E: Error header: Precondition failed: Node 2939010686 is still used by ways 290362380,290364312.
- E: org.openstreetmap.josm.io.OsmApiException: ResponseCode=412, Error Header=<Precondition failed: Node 2939010686 is still used by ways 290362380,290364312.>