advanced editing: cannot start drawing from an existing vertex

1. enable "advanced editing" (window > preferences > tool > edit tool > advanced editing)
2. select "create polygon tool"
3. draw a polygon
4. commit
5. draw a second polygon. start drawing from a vertex of the previously created polygon.

result: Drawing doesn't begin as it should. See stacktrace from below.

• Works if "advanced editing" is not enabled.
• Current snapping behavior doesn't seem to have effect. You get error even if you have "no snapping".
• Works fine if the vertex to which you are snapping is not on same layer you are editing.
• Fails with point and line tools also.

Error from the log:

!ENTRY net.refractions.udig.project 1 0 2010-07-19 13:30:28.580
!MESSAGE [Select Geometry] failed to run
!STACK 0
java.util.NoSuchElementException
at net.refractions.udig.tools.edit.commands.SelectFeaturesAtPointCommand$IntersectTestingIterator.next(SelectFeaturesAtPointCommand.java:300)
at net.refractions.udig.tools.edit.commands.SelectFeaturesAtPointCommand$IntersectTestingIterator.next(SelectFeaturesAtPointCommand.java:1)
at net.refractions.udig.tools.edit.commands.SelectFeaturesAtPointCommand.runSelectionStrategies(SelectFeaturesAtPointCommand.java:188)
at net.refractions.udig.tools.edit.commands.SelectFeaturesAtPointCommand.run(SelectFeaturesAtPointCommand.java:111)
at net.refractions.udig.project.command.UndoableComposite.execute(UndoableComposite.java:81)
at net.refractions.udig.project.command.CommandManager$Executor.execute(CommandManager.java:394)
at net.refractions.udig.project.command.CommandManager$Executor.run(CommandManager.java:325)
at net.refractions.udig.project.command.CommandManager$Executor.run(CommandManager.java:311)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)