Special Characters plugin is not keyboard accessible

[oatymart]

📝 Provide detailed reproduction steps (if any)

1. Load a ClassicEditor with SpecialCharacters plugin
2. Move focus to the toolbar by keyboard
3. Move focus to the Special Characters toolbar button by keyboard
4. Activate button -> focus doesn't move inside the dropdown, so it's unusable by keyboard

✔️ Expected result

I can choose and insert a special character from the toolbar by keyboard only

❌ Actual result

Focus returns to the editable content and the dropdown is stuck open

📃 Other details

• Browser: Chrome 87
• OS: MacOS 10.15.7
• First affected CKEditor version: 22.0.0
• Installed CKEditor plugins: BlockQuote, Bold, Essentials, Font, Heading, Indent, IndentBlock, Italic, ListStyle, SpecialCharacters, SpecialCharactersEssentials, Strikethrough, Subscript, Superscript, Table, TableCellProperties, TableProperties, TableToolbar, Underline, WordCount,

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If you'd like to see this fixed sooner, add a 👍 reaction to this post.

[pradip1987]

Hi Team,
When can we expect the fix for this bug?

[pradip1987]

👍