Steps to reproduce
1. Create a Basic Web Content.
2. In the Content field add some text, like 'Text english'.
3. Change to another language, for example es_ES, and add some text, like 'Text spanish'.
4. Change to other language ca_ES and don't edit the content.
5. Add a breakpoint here.
6. Change to other language pt_BR.
7. The breakpoint triggers, execute in the browser console:
The localizationMap should include entries only to the languages en_US and es_ES.
The localizationMap is including entries to the languages en_US, es_ES and ca_ES.