Macro: attachment points aren't disappearing in snake viewed chain of peptides when hovering them multiple times

[y-holik]

Steps to Reproduce

1. Switch to macromolecules
2. Place multiple peptides on canvas and bond them
3. Click snake view
4. Randomly hover mouse over peptide chain (bond tool must be selected)

Actual behavior Attachment points are always shown for random peptides

Expected behavior Attachment points should disappear if monomer is not hovered

Screenshots

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[Zhirnoff]

Test added to the table.

[AlexeyGirin]

Verified.