Custom image without title shows as blank in UI when deploying

[Alberto Donato]

Uploading a custom image without title causes the UI to show it as blank in the dropdown menu for deployment.

The image correctly shows with the title derived from the name in the images list:

E.g. (from bootresource.poll response):

{
 "2": {
  "id": 141,
  "rtype": 2,
  "name": "my-ubuntu-2",
  "title": "my-ubuntu-2",
  "arch": "amd64",
  "size": "1.8 GB",
  "complete": false,
  "status": "Waiting for rack controller(s) to sync",
  "icon": "waiting",
  "downloading": false,
  "canDeployToMemory": false,
  "numberOfNodes": 0,
  "machineCount": 0,
  "lastUpdate": "Thu, 23 Nov. 2023 13:20:34",
  "lastDeployed": null
 }
}

for an image created as:

maas $profile boot-resources create name=custom/my-ubuntu-2 architecture=amd64/generic filetype=ddgz content@=file.dd.gz