CSRFToken: Secret token verification failed, token: "null" when save very big article

Save after edit very big article show message about "authorization problem" and write log message in catalina.out:
2022-12-15 19:29:07,442 [ajp-nio-127.0.0.1-8009-exec-6 - http://MY-HOST-NAME/xwiki/bin/preview/VeryBigArticle/WebHome] WARN o.x.c.i.DefaultCSRFToken - CSRFToken: Secret token verification failed, token: "null", stored token: "FOK80v2TJtuvRnAkQuNAJA"

Size of this article in plain-text in utf-8 is ~700KB. After reduce size to ~520KB it saved without errors.

Our environments:
CentOS 7.8.2003, kernel 3.10.0-1127 x86_64
Tomcat 9.0.70 (tested on 8.5.84 too)
PostgreSQL 15.1
$ java -version
openjdk version "11.0.6" 2020-01-14 LTS
OpenJDK Runtime Environment 18.9 (build 11.0.6+10-LTS)
OpenJDK 64-Bit Server VM 18.9 (build 11.0.6+10-LTS, mixed mode, sharing)

Also tested with same result on:
FreeBSD 13.1-p5 amd64
Tomcat 9.0.70
PostgreSQL 15.1
$ java -version
openjdk version "17.0.5" 2022-10-18
OpenJDK Runtime Environment (build 17.0.5+8-1)
OpenJDK 64-Bit Server VM (build 17.0.5+8-1, mixed mode, sharing)

Found issue https://jira.xwiki.org/browse/XWIKI-19444, but we don't use short URLs. In any case, we checked all the suggested solutions, but nothing has changed.
Look like this operation require POST multipart, but save action doesn't support it.