I've tested with 18.04 and the newer udisks also shows the same behaviour.
From further digging I've found that there is an open issue for a udisks partition property loss bug which seems to be an exact match at https://github.com/storaged-project/udisks/issues/425
I've tested with 18.04 and the newer udisks also shows the same behaviour.
From further digging I've found that there is an open issue for a udisks partition property loss bug which seems to be an exact match at https:/ /github. com/storaged- project/ udisks/ issues/ 425