Traceback (most recent call last):
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/server/server.py", line 777, in _extract_autoinstall_from_cloud_config
    await validate_cloud_init_schema()
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/cloudinit.py", line 153, in validate_cloud_init_schema
    raise CloudInitSchemaValidationError(keys=causes)
subiquity.cloudinit.CloudInitSchemaValidationError: Cloud config schema failed to validate.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/server/server.py", line 979, in start
    await self.wait_for_cloudinit()
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/server/server.py", line 880, in wait_for_cloudinit
    await self.load_cloud_config()
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquitycore/context.py", line 166, in decorated_async
    return await meth(self, **kw)
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/server/server.py", line 854, in load_cloud_config
    autoinstall = await self._extract_autoinstall_from_cloud_config(
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquitycore/context.py", line 166, in decorated_async
    return await meth(self, **kw)
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/server/server.py", line 790, in _extract_autoinstall_from_cloud_config
    potential_autoinstall: dict[str, Any] = dict(
  File "/snap/hostname-desktop-bootstrap/149/bin/subiquity/subiquity/server/server.py", line 791, in <genexpr>
    ((key, cloud_cfg[key]) for key in bad_keys)
KeyError: 'broadcast'