memstick images install broken bootx64.efi

Hi,

Looks like installations from snapshot memstick images (tried all
available ones for amd64 from
http://ftp.freebsd.org/pub/FreeBSD/snapshots/ISO-IMAGES/13.0/) put
broken bootx64.efi to ESP -- the system in question simply tries to boot
via PXE.  Fixing this is simple -- mounting the ESP, and copying
/boot/loader.efi from installation media (the same memstick) to
efi/boot/bootx64.efi.  And diff shows that the two actually differ,
having the same size and file(1) output though.

Anyone seeing the same and/or knows what's wrong here (before I try
looking into that)?