session: clarify that it's OK for tab_view to be NULL
The TabViewTracker holds a weak ref to the EphyTabView and is prepared for it to be NULL. This indicates a new window should be created when the tab is reopened.
Related: #2156 (closed)
The TabViewTracker holds a weak ref to the EphyTabView and is prepared for it to be NULL. This indicates a new window should be created when the tab is reopened.
Related: #2156 (closed)