When a Btrfs file system is made from multiple devices (all profiles, but also sprout device with backing seed device), systemd can get confused leading to automatic unmounting of the file system.
See upstream reports:
https://github.com/systemd/systemd/issues/14454 https://github.com/systemd/systemd/issues/14674 https://github.com/systemd/systemd/issues/19393
Metadata Update from @ngompa: - Issue tagged with: Dev
cc: @dcavalca @anitazha @daandemeyer
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