"Circle arc" is deleting ways

[naoliv]

With the attached file, select and zoom to the way with a tag this=one and Shift+C to create a circle arc. See how it deletes the selected way + another connected way.

JOSM

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2015-08-18 01:32:15
Last Changed Author: simon04
Revision: 8670
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2015-08-17 19:13:17 +0200 (Mon, 17 Aug 2015)
Last Changed Rev: 8670

Identification: JOSM/1.5 (8670 pt_BR) Linux Debian GNU/Linux unstable (sid)
Memory Usage: 304 MB / 4029 MB (85 MB allocated, but free)
Java version: 1.7.0_79, Oracle Corporation, OpenJDK 64-Bit Server VM
Java package: openjdk-7-jre:amd64-7u79-2.5.6-1
VM arguments: [-Dawt.useSystemAAFontSettings=on]
Dataset consistency test: No problems found

Plugins:
- AddrInterpolation (31241)
- Create_grid_of_ways (31241)
- FastDraw (31265)
- FixAddresses (31241)
- OpeningHoursEditor (31241)
- PicLayer (31241)
- SimplifyArea (31241)
- buildings_tools (31361)
- download_along (31241)
- editgpx (31241)
- geotools (31126)
- graphview (31241)
- jts (31126)
- measurement (31289)
- merge-overlap (31241)
- opendata (31241)
- pdfimport (31241)
- poly (31241)
- reverter (31241)
- tagging-preset-tester (31241)
- todo (29154)
- turnrestrictions (31241)
- undelete (31241)
- utilsplugin2 (31463)

[skorasaurus]

appears to be duplicate of https://josm.openstreetmap.de/ticket/9346

[skyper]

Closed as duplicate of #9346.