How to change a mapping char filter

(from github.com/MajidSafari)
don’t work “mappings”: [ "\u200C=> "]

i want u200C like space

help me

(from github.com/marevol)
Need more details.
To change analyzer/mapping, fess index needs to be deleted and created.

(from github.com/MajidSafari)
when change analyzer/mapping must delete index ???

(from github.com/marevol)
Yes.
Index setting/mapping is applied at index creation time.
Basically, index setting/mapping cannot be changed(some of them can be changed).
This is specification of Elasticsearch, not Fess.