$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-OpenSSL-DSA.git /var/lib/mock/f45-build-22589-593/root/chroot_tmpdir/scmroot/perl-Crypt-OpenSSL-DSA
Cloning into '/var/lib/mock/f45-build-22589-593/root/chroot_tmpdir/scmroot/perl-Crypt-OpenSSL-DSA'...
$ git fetch origin ba75c94cb73c229b6baee4b3f5726712ff9037a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-OpenSSL-DSA
 * [new ref]         ba75c94cb73c229b6baee4b3f5726712ff9037a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba75c94 Perl 5.44 rebuild