unsaved changes dialogue: strange behaviour after canceled upload

[skyper]

I canceled an upload started through the "unsaved changes dialogue" in the upload dialogue and ended up with the "unsaved changes dialogue" with only the cancel button activated only to come back to another "unsaved changes dialogue.

1. open a saved data layer with not yet uploaded changes.
2. try to exit JOSM -> unsaved changes dialogue
3. choose "perform action" (upload)
4. cancel upload on the "upload dialogue"
5. unsaved changes dialogue with only option "Cancel"
6. Click Cancel -> unsaved changes dialogue

I expected to get back right away to the "unsaved changes dialogue" with all options available and not a dialogue with only cancel.

Tested with 7266_2_samples.tar.bz2​

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-06-30 01:31:12
Last Changed Author: Don-vip
Revision: 5309
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-06-29 22:12:06 +0200 (Fri, 29 Jun 2012)
Last Changed Rev: 5309

Identification: JOSM/1.5 (5309 en)
Memory Usage: 68 MB / 241 MB (19 MB allocated, but free)
Java version: 1.6.0_18, Sun Microsystems Inc., OpenJDK 64-Bit Server VM
Operating system: Linux
Dataset consistency test: No problems found

[mdk]

With version 15520 the problem no longer exists. It looks like the dialog is completely redesigned.