"Database unavailable" if start in "read_only" mode after creating full_text index

"Database unavailable" if start in "read_only" mode after creating full_text index (CALL db.index.fulltext.createNodeIndex)

read_only=False (it work's)
read_only=True (it doesn't work)

Exception: "Can not write to index statistics store while in read only mode."

Version 4.0 (Community edition)