Grub2 update on F32 strange results

[antonio montagnani]

After an update from F31 to F32, the next update sent these warnings, 
but upgrade was completed:

Upgrading                    : grub2-common-1:2.04-13.fc32.noarch 
4/299
errore: lsetfilecon: (/boot/efi/EFI/fedora, system_u:object_r:boot_t:s0) 
Operazione non supportata
Upgrading                    : grub2-efi-x64-1:2.04-13.fc32.x86_64 
110/299
errore: lsetfilecon: (/boot/efi/EFI/fedora/fonts, 
system_u:object_r:boot_t:s0) Operazione non supportata
errore: lsetfilecon: (/boot/efi/EFI/fedora/grubx64.efi;5ea454b1, 
system_u:object_r:boot_t:s0) Operazione non supportata

Operazione non supportata = unsupported operation

Any clue??