JOSM claims that there are incomplete nodes in a way when there isn't when updating

[rickmastfan67]

Steps to reproduce:

1. Download a small area ( try: ​http://api.openstreetmap.org/api/0.6/map?bbox=-80.1377106,41.7159803,-80.1268959,41.7209775 )
2. Select any of the ways that only have 2 nodes in the downloaded area.
3. File > Update Selection

What happens:
Look at the Java console and notice the following message: "Way {way id here} with 2 nodes has incomplete nodes because at least one node was missing in the load data." After that, you see a request for the two nodes in the way.

What should happen:
JOSM shouldn't be telling you that there are incomplete nodes in the first place in the console because you do already have both nodes for the way downloaded and displayed on the screen as you had just downloaded that area. JOSM also shouldn't need to re-request those nodes in the first place as long as they hadn't been modified.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-02-23 02:32:36
Last Changed Author: akks
Revision: 5018
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-02-22 19:54:15 +0100 (Wed, 22 Feb 2012)
Last Changed Rev: 5018

Identification: JOSM/1.5 (5018 en)
Memory Usage: 263 MB / 2730 MB (166 MB allocated, but free)
Java version: 1.6.0_31, Sun Microsystems Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Windows 7
Dataset consistency test: No problems found

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[skyper]

See also #7437 and #4663.

If you run "update data", JOSM checks the whole bounding boxes for modifications , e.g. it querries all local objects. It does this cause the objects might have been changed by other users. Use "update modified" or "update selected" if you only want to update certain objects but be aware that in order to update a way its nodes have to be checked.

[mdk]

Actually (r15591) I couldn't reproduce the problem. In the mentioned download area are 6 vertical ways witch I can Update one by one or all together without problems.