Traceback (most recent call last):
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/api/server.py", line 164, in handler
    result = await implementation(**args)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/server/controllers/filesystem.py", line 1226, in v2_edit_partition_POST
    self.partition_disk_handler(disk, spec, partition=partition)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/manipulator.py", line 259, in partition_disk_handler
    self.create_filesystem(partition, spec)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/manipulator.py", line 84, in create_filesystem
    self.create_mount(fs, spec)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/manipulator.py", line 49, in create_mount
    self.add_boot_disk(vol.device)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/manipulator.py", line 406, in add_boot_disk
    plan.apply(self)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/boot.py", line 157, in apply
    plan.apply(manipulator)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/boot.py", line 138, in apply
    manipulator._mount_esp(self.part)
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/common/filesystem/manipulator.py", line 357, in _mount_esp
    self.model.add_mount(part.fs(), "/boot/efi")
  File "/snap/hostname-desktop-installer/1278/bin/subiquity/subiquity/models/filesystem.py", line 2127, in add_mount
    raise Exception(f"{fs} is already mounted")
Exception: Filesystem(fstype='vfat', volume=partition-nvme0n1p3, preserve=True, id='format-0') is already mounted