$ git clone -n https://src.fedoraproject.org/rpms/perl-PerlIO-eol.git /var/lib/mock/f45-build-25806-613/root/chroot_tmpdir/scmroot/perl-PerlIO-eol
Cloning into '/var/lib/mock/f45-build-25806-613/root/chroot_tmpdir/scmroot/perl-PerlIO-eol'...
$ git fetch origin ba665848f8f66e1a98c8b9b3b712813d647c1a89:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-PerlIO-eol
 * [new ref]         ba665848f8f66e1a98c8b9b3b712813d647c1a89 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba66584 Perl 5.44 rebuild