The Back button in Side Peak mode ends this mode if you've followed a link

To reproduce it:

1. Have a Collection in the Side Peak mode.
2. In the right half of the screen have an Object open that contains a link. -- Click it.
   --> the linked Object opens.
3. Now click the Back button
   --> You would expect to see the Collection in Side Peak mode again, with the previous Object open on the right side, because that was the situation before you've followed the link.
   -- But instead, you see that Collection in the normal view (not side Peak) and you've lost the position in the Collection's table.