Preconditions:

At least two another languages added.

Steps:

1. Go to an Content Item preview and select translation tab
2. Click button to add new translation
3. Select first language and close modal without confirming
4. Go to another tab, for example Admin
5. Click browser back button
6. Click again button to add new translation
7. This time select the second language and confirm

Actual result:

User is redirected to translation form, but content item will be translated for the first chosen language (from step 3)

Expected result:

User should be redirected to the translation form with the second language (step 7). Language selection (the first one) should be canceled.