Preview: the reaction with retrosynthetic arrow is displayed not correct after export from CML when only one retrosynthetic arrow between molecules

[AnnaKosol]

Steps to Reproduce

1. open ketcher
2. Add the reaction with retrosynthetic arrow from file
   easy reaction with etrosynthetic arrow.ket.zip
   or create manually

3. save in the CML format file
4. export saving file on the canvas

Expected behavior
Reaction should be displayed with opposite order of components

Actual behavior
Only one molecule is displayed on the canvas

2. Add file
   arr Rarr plus.ket.zip
   or create manually

3. save to cml format
4. open saving file on the canvas

Actual behavior

Environment details:
Ketcher Version 2.23.0-rc.3 Build at 2024-08-08; 13:17:49
Indigo Version 1.24.0-dev.1.0-g5561a82a1-wasm32-wasm-clang-19.0.0
Chrome Версия 126.0.6478.127 (Официальная сборка), (arm64)
MacOs Sonoma 14.5

Issue found while testing #2071