This fallback has no limit checks .. it is a replacement of the current summary message "Item changed"
###Template
Changed label, description and/or alias [whichever of them has been touched anywhere] in XX languages
Example:
`Changed label, description and/or alias in 60 languages`
###To do
[x] ADR introducing `ChangeOpResult` as return value of `ChangeOp::apply`
[x] Implementation of `ChangeOpResult` in Wikibase and WikibaseLexeme
[x] Introducing `LanguageBoundChangeOpResult` followin ISP
[x] [Add service for counting distinct changed languages in a given changeOpResults tree](https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/530116)
[ ] (peer-review) [Enable checking whether parts other than terms has changed or not](https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Wikibase/+/533522/1)
[ ] Use new service in `EditEntity` class to generate final summary message