Description of problem:
Tried to install Fedora using LVM Thinpool.

Version-Release number of selected component:
anaconda-core-26.21.1-1.fc26.x86_64

The following was filed automatically by anaconda:
anaconda 26.21.1-1 exception report
Traceback (most recent call first):
  File "/usr/lib64/python3.6/site-packages/gi/overrides/BlockDev.py", line 745, in wrapped
    raise transform[1](msg)
  File "/usr/lib/python3.6/site-packages/blivet/devices/md.py", line 488, in _setup
    blockdev.md.activate(self.path, members=disks, uuid=self.mdadm_format_uuid)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/devices/storage.py", line 377, in setup
    self._setup(orig=orig)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/deviceaction.py", line 695, in execute
    self.device.setup(orig=True)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/actionlist.py", line 325, in process
    action.execute(callbacks)
  File "/usr/lib/python3.6/site-packages/blivet/actionlist.py", line 48, in wrapped_func
    return func(obj, *args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/blivet.py", line 163, in do_it
    self.devicetree.actions.process(callbacks=callbacks, devices=self.devices)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/osinstall.py", line 1112, in turn_on_filesystems
    storage.do_it(callbacks)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 437, in run_task
    self._task(*self._task_args, **self._task_kwargs)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 471, in start
    self.run_task()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 303, in start
    item.start()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 303, in start
    item.start()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install.py", line 356, in doInstall
    installation_queue.start()
  File "/usr/lib64/python3.6/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/threads.py", line 251, in run
    threading.Thread.run(self, *args, **kwargs)
gi.overrides.BlockDev.MDRaidError: Device /dev/md/fedora_localhost-live_0 doesn't exist.

Additional info:
addons:         com_redhat_kdump
cmdline:        /usr/libexec/system-python  /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-base
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         4.11.0-0.rc3.git0.2.fc26.x86_64
other involved packages: python3-blivet-2.1.7-8.fc26.noarch, python3-blockdev-2.5-1.fc26.x86_64, system-python-libs-3.6.0-21.fc26.x86_64
product:        Fedora
release:        Fedora release 26 (Twenty Six)
type:           anaconda
version:        26