Comment 1 for bug 1832176

Observed a similar issues with maas 2.6.0-7802-g59416a869

Selecting multiple machines from the GUI and releasing results in full disk erase behavior. Machines need to be released one at a time to get quick erase to be used.

$ maas root maas get-config name=disk_erase_with_quick_erase
Success.
Machine-readable output follows:
true

$ maas root maas get-config name=enable_disk_erasing_on_release
Success.
Machine-readable output follows:
true

$ maas root maas get-config name=disk_erase_with_secure_erase
Success.
Machine-readable output follows:
false