rind modeller creates artefacts

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Start version 2.223 or 2.195. Repeat the procedures as described in the
symmetric shape vid in the "Instructional video" section of ERGUN AKLEMAN
homepage
http://www.viz.tamu.edu/faculty/ergun/research/topology/TopMod/symmetric/Procedu
reVideo.html
2. use multiple selections mode for marking 
3. use consecutive (>=2 times) rind modelling (thickness) function 

What is the expected output? What do you see instead?
rind modeller works not like shown in vid instead rind modeller creates
artefacts (-->additional edges and faces).

What version of the product are you using? On what operating system?
This problem occurs with version 2.223 and 2.195 BUT NOT with 1.0!
OS: Win 7 and Win7 (XP compatability mode)

Please provide any additional information below.
if needed I can provide a pic. I would be glad if someone could take of
this wonderful topology modeller and resolves the issue.

Original issue reported on code.google.com by [email protected] on 30 May 2010 at 10:10