Scenario:Editor1 creates a new Project and creates a new page in languageX in the project. Editor1 notifies other editors that this page needs to be translated.
Editor2 translates pages to languageY. Editor2 checks the Project overview, sees the page that needs to be translated, and select "Edit". Editor2 is then taken to the languageX version and a notification is shown that this page is in languageX and that he/she needs to switch to languageX to be able to edit.
If Editor2 clicks on the page in the site tree a notification is shown that this page is in languageX, and is given the option to translate to languageY.
I suggest that Editor2 should be given the option to switch language or to translate to languageY after selecting "Edit" in the Project overview.
And/or possibly give the editor an option to select "Edit in <current language>" in the Project overview.