Discrepancy in behaviour of Building Tool ("B") & Orthoganalise Shape ("Q")

[SK53]

What steps will reproduce the problem?

1. Draw a rectangular building with the building tool (Select "B", draw shape.
2. Select the newly drawn way
3. Press "Q" to orthoganlise the shape, and the way changes its geometry

What is the expected result?

No change in geometry.

What happens instead?

The geometry changes. The building tool is expected to produce shapes which are already orthogonalised, Therefore pressing "Q" should not have any affect on the geoemtry of ways created this way.

Please provide any additional information below. Attach a screenshot if possible.

Screen shot showing a building created with building tool & a copy of same building which has been orthogonalised. The second building has been moved to facilitate comparison.

This may be closely related to #5190.

Revision: 8491
Repository Root: http://josm.openstreetmap.de/svn
Relative URL: ^/trunk
Last Changed Author: Don-vip
Last Changed Date: 2015-06-16 23:27:08 +0200 (Tue, 16 Jun 2015)
Build-Date: 2015-06-16 21:45:58
URL: http://josm.openstreetmap.de/svn/trunk
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last Changed Rev: 8491

Further details of my JOSM configuration have been excised on privacy grounds.

Plugins:
- AddrInterpolation (31241)
- ImportImagePlugin (31241)
- buildings_tools (31241)
- cadastre-fr (31443)
- commons-imaging (31241)
- dataimport (31241)
- geochat (31241)
- geotools (31126)
- imagery_offset_db (31241)
- jts (31126)
- log4j (31231)
- merge-overlap (31241)
- mirrored_download (31294)
- opendata (31241)
- photo_geotagging (31241)
- poly (31241)
- reverter (31241)
- terracer (31241)
- todo (29154)
- turnrestrictions (31241)
- undelete (31241)
- utilsplugin2 (31241)

[Upliner]

I consider it as a bug in Orthogonalise tool, not in BuildingsTools. Orthogonalise tool produces "rectangle on the screen" while BuildingsTools produces "rectangle on the ground"

[mdk]

see also #5190