Copy to clipboard doesn't work (throws exception) for very simple custom query bond

[AlexeyGirin]

Environment details (please complete the following information):

• Indigo Toolkit Version 1.18.0-rc.4.0-g84a1f903f-x86_64-linux-gnu-11.2.1
• Ketcher Version 2.18.0-rc.2 Build at 2024-01-17; 16:42:55
• Chrome Version 120.0.6099.130 (Official Build) (64-bit)
• Win10
• Issue found while testing https://github.com/epam/Indigo/issues/1436

Describe the bug Copy to clipboard doesn't work (throws exception) for very simple custom query bond

Steps to Reproduce

1. Load from file: Copy to clipboard doesn't work (throws exception) for very simple custom query bond.zip (unzip first)
2. Press Ctrl+A keys
3. Press Ctrl+C keys

Actual behavior System throws exception: Convert error! IndigoException: molfile saver: unrepresentable query bond: (order = 3 | order = 4)

Expected behavior No exception. Works as intended

[AliaksandrDziarkach]

This is molfile restriction.

[AlexeyGirin]

Should work. Result should not contain unsupported features in mol format

[AlexeyGirin]

Moved to Refined Backlog since not fixed over 2 releases