On a multilingual site, if we access the sitewide alerts collection page in a specific language that is not the primary language, the entities displayed in the list are not language-sensitive
Steps to reproduce
Install a multilinguage site
Define EN as the primary language, install FR language (or any other one)
Access the EN sitewide alerts collection page (/admin/content/sitewide_alert): alerts displayed in the list are EN entities which is ok
Access the FR sitewide alerts collection page (/fr/admin/content/sitewide_alert): alerts displayed in the list aren't FR entities but EN entities.