Global Styles custom colors with the same name are not differentiated

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If custom colors are added in the global styles theme settings with the same name (eg Color 1), it becomes impossible to select any color but the last custom color of that name.

Steps to reproduce

1. Start in site editor
2. Select global styles
3. Colors>Palettes>Custom Colors, add custom colors
4. Select "Show Details" in the menu for custom colors, and rename all the colors to the same name, such as "Color 1"
5. Return to the editor, and try selecting one of these custom color for any block color setting

Result

Of the Custom colors have the same name, the editor interface displays the last color of that name, while the color picker itself shows the first color of that name, even if something between those two is selected.

Possible Solution
Preventing Custom Colors from being given the same name would help alleviate this issue.

Originally reported here: ​https://github.com/Automattic/wp-calypso/issues/75197
Replicated in WP version 6.2 with all plugins deactivated.
Theme: Twenty Twenty-Three

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Screenshot of result of Custom Colors all using the same name

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Reported in Gutenberg GitHub Repository instead: ​https://github.com/WordPress/gutenberg/issues/49593