Formating buttons aren’t updated accordingly when text is deleted

[pinarol]

To Reproduce

Steps to reproduce the behavior:

1. Add a paragraph block
2. Add normal, bold, italic text sequentially
3. Tap backspace button to remove the text

Result:
The active state of format buttons don't change

4. Try adding new text

Result:
The new text added doesn't match the active format Buttons

Expected behavior

1. Add a paragraph block
2. Add normal, bold, italic text sequentially
3. Tap backspace button to remove the text

Expected:
The active state of format buttons should change according to the caret position

Screenshots
Download to see the screencapture:
format-buttons.mov.zip

Smartphone (please complete the following information):

• Device: [iPhone XS]
• OS: [iOS 13.3]
• Mobile Gutenberg Editor Release 1.26, 1.25, 1.24

[dcalhoun]

For additional context, here is a video of what I believe to be the same issue.

ios-backspace-clears-rich-text-styling.MP4

[jostnes]

Was able to reproduce this during exploratory testing of WordPress iOS v18.0, found that after a typo and backspace to fix typo the formatting is no longer respected:

RPReplay_Final1628686294.MP4

[fluiddot]

Closing this issue as it was already solved in WordPress/gutenberg#37676 and released in version 19.0.