Multiple SSH remotes: Assuming same filesystem: "ssh://id0005750/dev/nvme0n1p4", "ssh://id0005752/dev/nvme0n1p4"

Hi,

I have 3 remote machines that I want to do backup server initiated backups from.

```
volume ssh://id0005750/mnt/rootvol
target /mnt/nas_hdd/remotes/id0005750
target_preserve 8d 12w 12m
subvolume volume/root
subvolume volume/home
subvolume volume/var_log

volume ssh://id0005752/mnt/rootvol
target /mnt/nas_hdd/remotes/id0005752
target_preserve 8d 12w 12m
subvolume volume/root
subvolume volume/home
subvolume volume/var_log

volume ssh://id0005753/mnt/rootvol
target /mnt/nas_hdd/remotes/id0005753
target_preserve 8d 12w 12m
subvolume volume/root
subvolume volume/home
subvolume volume/var_log
```

These three were originally a dd clone of a fourth machine. I have used `btrfstune` to change the fs uuid and also made sure the subvols have unique uuid. However, when I run the backup, I am getting a weird error.

```
ID0005750 # btrfs sub list -uq /mnt/rootvol/
ID 7787 gen 301326 top level 5 parent_uuid 955fe4b0-fa2a-c549-bc41-7bdfb27a113f uuid 82bd8608-2801-3c44-b82b-50aa7bdc0d2a path volume/home
ID 7788 gen 301326 top level 5 parent_uuid 3d3a1253-56ac-5247-aa63-b92a10635131 uuid 97cda88c-7bc7-4c4f-9bf2-1f944140cdfa path volume/root
ID 7789 gen 301326 top level 5 parent_uuid 10780799-8f2f-e04b-b853-ca506e060d83 uuid 184b68e5-066f-2848-853a-14c196bd399d path volume/var_log

ID0005750 # btrfs fi sh
Label: none uuid: 00b88b66-158d-45b3-a41a-b8b618b3d2ba
Total devices 1 FS bytes used 95.98GiB
devid 1 size 1.79TiB used 100.06GiB path /dev/nvme0n1p4

ID0005752 # btrfs sub list -uq /mnt/rootvol/
ID 6143 gen 237439 top level 5 parent_uuid 7df5dd26-debb-0844-8b4c-f578e80da942 uuid e420b286-4acb-3546-934f-e7359c23afce path volume/home
ID 6144 gen 237439 top level 5 parent_uuid 10188a92-f4fb-7742-9a8c-fd3369783ead uuid 9b2b1958-7b71-8043-9052-f4069752cff8 path volume/root
ID 6145 gen 237439 top level 5 parent_uuid c072503f-893c-284c-81a7-68b222ce3349 uuid 11058206-d7b4-334e-a6ea-a208cb94e9f6 path volume/var_log

ID0005752 # btrfs fi sh
Label: none uuid: 67b195fc-e278-4f78-907e-2501fdbdf549
Total devices 1 FS bytes used 23.97GiB
devid 1 size 1.79TiB used 29.06GiB path /dev/nvme0n1p4

ID0005753 # btrfs sub list -uq /mnt/rootvol/
ID 6345 gen 244138 top level 5 parent_uuid 82e66a53-9b58-1443-b584-305b704603c2 uuid a2c128d1-512c-2c4d-983f-ced204667e12 path volume/home
ID 6346 gen 244138 top level 5 parent_uuid e9e97e7b-9fe1-8c48-a883-b6ef6fd81bd2 uuid 2a6c31d7-e42c-fb40-8a18-e1c526100d42 path volume/root
ID 6347 gen 244138 top level 5 parent_uuid 60ce10b3-0e0a-2d41-9058-a636d886333b uuid 0e05f328-7fa9-ab48-989d-7d9ecb496e7a path volume/var_log

ID0005753 # btrfs fi sh
Label: none uuid: 35491534-19b2-48f3-ad0c-3963cdab2614
Total devices 1 FS bytes used 79.20GiB
devid 1 size 1.79TiB used 86.06GiB path /dev/nvme0n1p4

SERVER # btrbk -v dryrun /mnt/nas_hdd/remotes/id0005750 /mnt/nas_hdd/remotes/id0005752 /mnt/nas_hdd/remotes/id0005753
btrbk command line client, version 0.32.6 (Thu Jan 22 18:06:27 2026)
Using configuration: /etc/btrbk/btrbk.conf
Assuming same filesystem: "ssh://id0005750/dev/nvme0n1p4", "ssh://id0005752/dev/nvme0n1p4"
Assuming same filesystem: "ssh://id0005750/dev/nvme0n1p4", "ssh://id0005753/dev/nvme0n1p4"
ERROR: Subvolume "id0005750:/mnt/rootvol/volume/root" and "id0005752:/mnt/rootvol/volume/root" will create same snapshot: id0005752:/mnt/rootvol/snapshots/root.*
ERROR: Please fix "snapshot_name" configuration options!

```