$ git clone -n https://src.fedoraproject.org/rpms/perl-Encode-ISO2022.git /var/lib/mock/f41-build-816232-150052/root/chroot_tmpdir/scmroot/perl-Encode-ISO2022
Cloning into '/var/lib/mock/f41-build-816232-150052/root/chroot_tmpdir/scmroot/perl-Encode-ISO2022'...
$ git fetch origin c512aad7ce91764a0144bcf8756e374bec47d5f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Encode-ISO2022
 * [new ref]         c512aad7ce91764a0144bcf8756e374bec47d5f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c512aad Perl 5.40 rebuild