Cannot push a package without Feeds_OverwritePackage privilege

Repro:

Create a new user with following privileges: Feeds_AddPackage, Feeds_DownloadPackage, Feeds_ViewFeed
Create a new package from scratch
push using the following commandline:
nuget.exe push <package_path> <username>:<pwd> -Source <proget_feed_address>

Expected result: the package should be uploaded.

Actual result:
Failed to process request. 'The package <packageName> already exists and the user
<username> does not have the Feeds_OverwritePackage privilege.'.
The remote server returned an error: (403) Forbidden..

As stated by the error message, if I add the Feeds_OverwritePackage privilege the command succeeds but now the user can overwrite packages.

We've identified this as a bug in ProGet 2.1 (PG-114), and will fix it in the next maintenance release (ProGet 2.1.2).

Great, many thanks for your support!