Format buttons: Incorrect format is displayed after applying format and moving the caret

[fluiddot]

Description

When applying format changes in the text, after moving the caret the format buttons display incorrect format.

NOTE: Looks like this might be related to highlighting text color, as it can only be reproduced when the text already has the highlight text color format applied.

Step-by-step reproduction instructions

1. Add a Paragraph block.
2. Add text with multiple words.
3. Select one of the words.
4. Apply highlight text color (NOTE: Without applying highlight text color, the issue can't be reproduced).
5. Select another word.
6. Apply any of the formats (e.g. Bold).
7. Tap at the end of the text (i.e. move the caret to the end).
8. Observe that the format buttons in the toolbar display an incorrect format. All format buttons should be off but the ones selected in step 6 remain.

Expected behaviour

Format buttons should always display the correct format.

Actual behaviour

Format buttons are not displaying the correct format.

Screenshots or screen recording (optional)

ios-incorrect-format.MP4

WordPress information

• WordPress version: N/A
• Gutenberg version: N/A
• Are all plugins except Gutenberg deactivated? N/A
• Are you using a default theme (e.g. Twenty Twenty-One)? Yes. I'm using the Masu theme.

Device information

• Device: iPhone 11
• Operating system: iOS 15.4.1
• WordPress app version: 22.3.0.1