"Pseudo staff text" issue

Somthing that came up in this thread: https://musescore.org/en/node/228126.

1. Create any musical note in the attached score.
2. Click once on the frame text. Copy and paste to the note.
3. Right-click on the newly-created text object.

Expected result: Same options expected as for "Staff Text."
Actual result: The "Staff Text properties" option is missing.

4. Click once on the new text object.
5. Copy it, click once on the empty text frame and paste.
Expected result: Nothing happens. You can't copy and paste true "Staff text" from a note to a frame in this way.
Actual result: The text is copied.

Suggestion: Disallow "one-click" copying of text from a frame to a note.