Un-bufferable geometry in Sheboygan dataset

[jng]

1. Select the parcel in the attached screenshot (Autogenerated_SDF_ID = 8149)
2. Create a buffer from this selection with default settings

Expect: A buffer to be created around the selected feature

Got: The stock message for a C++ null pointer de-reference:

Problem:\nThe application encountered a problem and could not finish the operation you just requested properly.\n\nSolution:\nIf it\'s the first time you met this problem, try again or restart the application / session; otherwise, describe the steps to reproduce this problem to the server administrator for suggestions.

Modifying buffer.php to show the stack trace reveals it to be at:

- MgGeometry?_Buffer() line 14619 file MgApi?_wrap.cpp

Observed in the AJAX viewer (.net and PHP) in both MGOS 2.2 and trunk.

Note that the un-bufferable feature in question is not the same feature that had tripped up FDO in the past ( http://trac.osgeo.org/fdo/ticket/382)