Bug with Editor Selection when toggling Feature layer from Snapshot to SelectionOnly

[MikeKaufman]

I think I have found a bug when toggling between SelectionOnly and Snapshot on a feature layer to select graphics.  I am using the editor to make spatial selections but also need the capability to make a selection by querying the attributes.  Once this toggle happens you can no long remove graphics spatially from the a set of selected graphics anymore

I have attached a WPF project using FW 4.0 and the WPF API 2.1 to demonstrate the bug

Here a the steps to repo
1. Implement the Editor to perform spatial selections
2. Toggle Selection Feature Layer to Snap shot, provide a query, and call update
3. Handle update completed and toggle Selection Feature Layer back to SelectionOnly and  where to nothing (null)
4. Try to spatially remove a graphic from the selection return from the snapshot query
5. All graphics are removed.
6. Try making new selection spatially
7. Remove a selection spatially (notice all selected graphics are removed.
Thanks in advance to anyone how can help me find a solution or workaround to this issue.

[MikeKaufman]

As long as OutFields include the ObjectId field you should be fine, you don't need to force it to "*".

I don't see ObjectId as being a valid field in a Map Service.  I ended up trying FID and it worked.

[JenniferNery]

If you go to visit the map service from your browser, get the field name with type "esriFieldTypeOID", make sure that this is part of your OutFields.