QTextEdit: Copy Table Under The Cursor to Another QTextEdit

[Green360]

My solution for copying block:

QTextCursor cursor = textEdit1->textCursor();
cursor.select(QTextCursor::BlockUnderCursor);
textEdit1->copy();
textEdit2->paste();

QTextCursor cursor = textEdit1->textCursor();
cursor.select(QTextCursor::BlockUnderCursor);
textEdit1->copy();
textEdit2->paste();

To copy to clipboard, switch view to plain text mode 

But looks like selected text is not placed in clipboard when textEdit1->copy() occurs.
Because the next call pastes old clipboard content to textEdit2.

How to fix the problem? More general question - how to copy QTextFrame or QTextTable from one QTextDocument instance to another?