Export of monomers to Mol v2000 works wrong (Open as New Project way)

[AlexeyGirin]

Steps to Reproduce

1. Go to Micro
2. Load from file: All type of monomers in horisontal chain and large micromolecule in the middle.zip
   
3. Save canvas to Mol v2000
4. Load it back using Open as New Project button

Actual behavior
System puts on the canvas:

Expected behavior
System let you put on the canvas

Versions

• Ketcher Version 2.26.0-rc.5 Build at 2024-10-21; 15:27:55
• Indigo Toolkit Version 1.25.0-rc.3.0-g795119115-wasm32-wasm-clang-19.0.0
• Chrome Version Version 130.0.6723.59 (Official Build) (64-bit)
• Win10

Found while testing - #5400