Preconditions:

Two languages exists in application.

Steps:

1. Go to Admin/Content Types/Content/Article
2. Switch into translations tab
3. Click button and add new translation
4. Go back to the View tab and select language to see newly translated form
5. Click Edit button (pencil)

Actual result:

User is redirected to the edit mode but in eng language. Edit button from right sidebar displays language picker after clicking so it's not a problem to go to the proper translation.

Expected result:

User is redirected to the edit mode in chosen language.