Hello Gianni Araco,
We reproduced the error, however we are still investigating what is causing it. The problem does not seem to be related to TFS as we are able to reproduce it with projects that are not bound to a source control system. We will let you know once we have more details, thank you for reporting this.
As to your suggestion, it is already on the TODO list, our plans are to use the rlinq file name as model/context name instead of the default "EntitiesModel". You can expect this to be implemented for one of the following releases.
the Telerik team
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