$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-IDN-Encode.git /var/lib/mock/f45-build-25297-610/root/chroot_tmpdir/scmroot/perl-Net-IDN-Encode
Cloning into '/var/lib/mock/f45-build-25297-610/root/chroot_tmpdir/scmroot/perl-Net-IDN-Encode'...
$ git fetch origin d02fb63be574c6824acb6e317a84da8c59e8bb96:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-IDN-Encode
 * [new ref]         d02fb63be574c6824acb6e317a84da8c59e8bb96 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d02fb63 Perl 5.44 rebuild