$ git clone -n https://src.fedoraproject.org/rpms/perl-Devel-PPPort.git /var/lib/mock/f45-build-23139-596/root/chroot_tmpdir/scmroot/perl-Devel-PPPort
Cloning into '/var/lib/mock/f45-build-23139-596/root/chroot_tmpdir/scmroot/perl-Devel-PPPort'...
$ git fetch origin 1efd0fe4038fb643b6292b230a1aa78c1cdcfe94:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Devel-PPPort
 * [new ref]         1efd0fe4038fb643b6292b230a1aa78c1cdcfe94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1efd0fe Perl 5.44 re-rebuild of bootstrapped packages