Created attachment 811609 [details]
partitioner setup

Steps to reproduce:

1. Run Tumbleweed installer (e.g. Build20190723) on the system with 2 disks ;
2. Proceed to Expert Partitioner;
3. Add BIOS Boot partition (2mb) + unmounted Btrfs partition on the rest of the
space of the 1st disk;
4. Add unmounted Btrfs partition on the 2nd disk;
5. Create multi-device Btrfs with the unmounted Btrfs partitions from the 1st
and the 2nd disks (Please, see "partitioner-setup.png" screenshot for more
details);
6. Finish the installation;
7. Focus on the GRUB menu when GRUB is appeared.

Expected result:
Only one Tumbleweed selection is shown.
Actual result:
Two Tumbleweed selections are shown. Please, see
"grub-two-tumbleweed-selections.png" screenshot and y2log.