Gutenberg invalid json due to UTF-8 character E2 80 AF

[jungb]

I just inserted a text on a page, hit publish and was getting an error, which states, that the response is not a valid JSON response.

Further Inspection showed, that this error is occuring, if the text has the following char in it:

U+202F	 	e2 80 af	NARROW NO-BREAK SPACE

Here is the plain text, the char is occuring betwenn "auszuwerten" and "oder"

<p>auszuwerten oder Werbung anzuzeigen.</p>

[jungb]

the occuring error

[jungb]

the char in unicode inspect

[Presskopp]

Related: #44958

[jungb]

Replying to Presskopp:

Related: #44958

Sorry, I dont understand why it is related? This is a bug in JSON response in Gutenberg Editor with a NNBSP char from UTF-8 Charset, not a   of HTML code, which should be totally different. Also no title or post name is involved here, it is about post content.
Can you explain please?

[Presskopp]

For me it seems/seemed related because of the specific character code, no more, no less