Four defects found reviewing the last two commits.
Reverting a faceplate choice took every cable on the device down with it.
Browsing to another plate and back left `plateChanged` set with freshly seeded
port ids, while `commitEdit` skipped `applyFaceplate` because the id matched —
so `setPorts` received ids the device never had and dropped every cable
attached to the old ones, with no warning, since from the user's side the plate
had not changed. Coming back to the device's own plate now restores its ports,
ids included.
The inventory select preselects the first unracked entry, but only
`pickInventory` seeded the status from it, so submitting without touching the
select wrote `unknown` over the status the mount had just copied. Status now
seeds from that same entry.
Creating a device POSTs to the Device Inventory before the mount is attempted,
so a rack with no free slot stranded the row — and stranded another on every
retry. The rack is checked for a slot before anything is created.
And `_service_name` accepted a service with no port, where the inventory
requires one (`None not in _COMMON_PORTS` is True): a portless service named a
device in the rack picker but not in the Device Inventory, the exact mismatch
the naming fix set out to remove.
ha-relevant: maybe
Pouzor
8cafeee743