Anaconda sees, but ignores, a hard drive *without explanation*.
The anaconda is the one with the F39 workstation live .iso .

I tried a trick that used to work, at least sometimes:
I copied the .iso to a partition on my hard drive.
Could not get it to boot.
grub2-mkconfig could not find it or did not believe in it.
Other attempts at booting did not work either.
Leaving the .iso partition alone, I burned a DVD.
The DVD booted just fine.
The Live OS ran just fine.
When I clicked on install,
the hard drive became invisible.

I've been told that the above behavior is deliberate.
Not telling the user what is going on is just plain nasty.

Steps to Reproduce:
1. Copy the F39 workstation live .iso file to a partition on a hard disk.
2. Burn said file to a DVD.
3. Try to install using said DVD.

Actual results:
An invisible hard drive without explanation.

Expected results:
A usable hard drive or an explanation.

Additional info:
I found out about it (and that it was deliberate)
by asking on a fedora mailing list.
The provider of the information did not
suggest that it was documented anywhere.