$ git clone -n https://src.fedoraproject.org/rpms/perl-FFI-Platypus.git /var/lib/mock/f41-build-816580-150267/root/chroot_tmpdir/scmroot/perl-FFI-Platypus
Cloning into '/var/lib/mock/f41-build-816580-150267/root/chroot_tmpdir/scmroot/perl-FFI-Platypus'...
$ git fetch origin 0f4457be2aed25aafb35ad4c0c79191c4060c3b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-FFI-Platypus
 * [new ref]         0f4457be2aed25aafb35ad4c0c79191c4060c3b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f4457b Perl 5.40 rebuild