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

**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](https://github.com/epam/Indigo/files/14065613/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