While editing or creating geometric network features, an error occurs: "Geometry cannot have z values"

Description

While editing or creating geometric network features stored in Z-aware feature classes, the following error is returned:"Geometry cannot have z values"

Cause

A bug in ArcGIS 10 is exposed when editing geometric network features in Z-aware feature classes when the geometric network has been created with the option to "Use Z values to determine connectivity of features".

Workaround