[hooks] Skip modification_date attribute in "notifentityupdated" hook
Depending on the call order of hooks, "modification_date" may come in
entity.cw_edited or not (from "metaattrsupdate" hook usually). It should
however not be considered in the notification context.
Closes #8842064.
Document: cubicweb-doc
Title: CubicWeb documentation
Author: Logilab
Abstract: Some base documentation for CubicWeb users and developpers
Section: Apps/Programming
Format: HTML
Index: /usr/share/doc/cubicweb-documentation/html/index.html
Files: /usr/share/doc/cubicweb-documentation/html/*