External links added and not translated are showed for all the languages
Enable multilanguage and add a new language
Create a Basic page with link in menu and translate. The link is showed in both language
Create a Basic page with link in menu but don't translate. The link is showed only for the original language
Go in the menu, create an external link (eg, http://www.google.com) and save the translation only for one language. The link is showed for both language
Modify the checkLinkAccess() method of MenuLinkTreeManipulators to manage this exception
Postponed: needs info
3.0
Code
Thank you for reporting the issue.
I do not manage to reproduce it though.
Even with an external link, menu items are filtered out of a menu if it has a language specified.
I think your situation is that your link has no language specified (e.g. `- not specified -` or `- not applicable -`). In this case the link is displayed in all languages.