Cannot read properties of undefined (reading 'nextSibling')" when changing font size inside a table within a span

[olivka-dev]

Screen_recording.mp4

Description
When a table with a bulleted list <ul> is wrapped inside a parent <span> tag, an error occurs when trying to change the font size or font family of the bulleted list.
If the parent is removed, font modifications work without issues.
Console Error: Cannot read properties of undefined (reading 'nextSibling')

Steps to Reproduce
Steps to reproduce are demonstrated in the attached video.
The issue is reproducible in the official Froala demo editor (https://froala.com/wysiwyg-editor/).

Expected Behavior (Ожидаемое поведение)
The font size of the bulleted list should change correctly without errors.
The console error should not appear.

Workaround
Removing the parent <span> around the table resolves the issue.