The attachment points R, to which the bond was attached, change randomly, when pasting onto the canvas

[ViktoriaTkacheva]

Steps to Reproduce

1. Open this file For AP in Macro.zip

   

2. Switch to the Macro mode and draw bonds:

• from AP R1 of structure F2 to AP R2 of structure F3

• from AP R1 of structure F3 to AP R2 of structure F4

  

3. Copy these structures and paste them nearby

Actual behavior
The attachment points R, to which the bond was attached, change randomly

Expected behavior
After pasting, the attachment points R should not change

Screenshots

2024-06-26_15h25_31.mp4

Desktop (please complete the following information):

• OS: Windows 10 Pro (version 22H2) x64
• Browser: Сhrome
• Version: (125.0.6422.142) x64

Ketcher version 2.22.0-rc.7, Build at 2024-06-20; 18:42:41

Issue found while testing #4530

[rrodionov91]

It happens because structure has several attachment points on one atom. Ketcher loses information about exact leaving group atom after serialisation and take attachment points consequently. So I would say that it is expected behaviour.
Closing ticket, please reopen if something wrong.

[AlexeyGirin]

Closed by @AlexanderSavelyev decision after discussion