Structure with R-Group Fragment Tool pasted into square brackets of the copied structure

[Zhirnoff]

Steps to Reproduce

1. Open Ketcher
2. Add Chain on canvas
3. Select R-Group Fragment Tool and click on Chain
4. Select R-Group and press Apply
5. With 'Selection tool' select all structure and press CTRL+C
6. Press CTRL+V for paste structure

Actual behavior
Structure with R-Group Fragment Tool is pasted not as a separate structure, but into the square brackets of the copied structure

Expected behavior
Structure with R-Group Fragment Tool is pasted as a separate structure, but not into the square brackets of the copied structure

Screenshots

2023-03-14_12h27_07.mp4

Desktop (please complete the following information):

• OS: Windows 10
• Browser Chrome
• Version 109.0.5414.120 (Official Build) (64-bit)

Ketcher version
Version 2.9.0-rc.3

Test case
[EPMLSOPKET-10898]

[Zhirnoff]

Wrong bug posting: All R-group members (copied and pasted) are enclosed in one brackets.