Copied tests lose their test scope and cannot be pasted into Tests

Copying a unit test in Objo Studio and pasting it into another project creates an ordinary application source instead of retaining its test scope. The pasted class appears outside the Tests group and its tests are not discovered. Pasting directly into an existing Tests group also does nothing.

Copied test sources should retain their test scope, appear under Tests in the destination project, remain discoverable, and stay excluded from normal application builds. The Tests group should accept compatible pasted source items.