CKEditor 4 adds a B before spaces. How to remove it?

Question

CKEditor

I accidentally discovered that when viewing the html code, CKEEditor adds the letter B before all spaces. What it looks like: in visual mode, put a space, open the html view and see before the space &#1042, return to visual mode and, of course, see B.
This glitch is available only when working from a mobile phone, and only in Chrome. I looked through a bunch of editor settings, I did not find anything that could be drawn to such a situation. I couldn't find anything similar on the toaster or google.
How to remove append B?
PS B is added each time you view the html code. That is, how many times you open, so many and B will be added before all spaces. The same B is added when saving the document.