it looks direct input is ok, see below:
test: to input "& # 339" (delete space in it)
aaa---œ---aaa
…
…
“video/mp4
French
Œ, œ, and the very rare Ÿ
Czech
Č, č, Ř, ř, Š, š, Ž, ž
…
œœœœœœ
the issue occur when you try to quote other's words --- all words will be lost...