Atoms with invalid valence loaded with explicitly defined valence from CDX

[AlexeyGirin]

Steps to Reproduce

1. Open Molecules (clean canvas)
2. Paste from clipboard on canvas following CDX: 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

Actual behavior
System loads oxygen atom with explicitly defined valence

Expected behavior
System loads oxygen atom as it is without explicitly defined valence

Environment details:

• Ketcher Version 3.11.0-rc.1
• Indigo Version Indigo v1.39.0-rc.1
• Chrome Version 142.0.7444.176 (Official Build) (64-bit)
• Win10