Yes, the search cache is disabled and cleared.

@ctdlg: on witch contents have you your trouble?
as we could see, the search on pictures descriptions and news/pages contents gives good results with accentuated characters except on tag.

can you provide a link?

@vincent3569
I just wrote a message on this forum to announce my website:
https://clatique.fr
And yes, i get same search results as you.
Search Neopolis or Néopolis .
on pages, accents do not matter !