Incorrect add of exisitng .h / .cpp files to a project without "Header Files" / "Source Files" filters.

Remove "Header Files" / "Source Files" from the project.

RMB on a project -> Add -> Existing item... -> pick some .h / .cpp files. For the first file you see the message box and then filter "Header Files" / "Source Files" is created.

Desired behavior: add files without filter creation.