Re: 'M-o' ('facemap-keymap') has now been removed until March 10th 2021

[Gregory Heytings]

> No bugs here. Both of these work as expected. I think the issue is 
> you're confused about font-lock-mode and text properties. These are not 
> the same thing. Font-lock-mode is just one way to add text properties to 
> text, so may other functions. Deactivating font-lock-mode does not 
> remove all text properties, only on text with the `(fontified . t)' 
> property. This is why you're seeing what you're seeing.

Please explain this to Stefan M, who considers this to be bugs, who would 
like to deprecate the font-lock-fontify-{buffer,block} commands, and who 
guided me to write the font-lock-update command.