$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-OpenSSL-RSA.git /var/lib/mock/f45-build-22570-593/root/chroot_tmpdir/scmroot/perl-Crypt-OpenSSL-RSA
Cloning into '/var/lib/mock/f45-build-22570-593/root/chroot_tmpdir/scmroot/perl-Crypt-OpenSSL-RSA'...
$ git fetch origin b99adf89ba0184ee7b70e7d68f4b6593e692f06b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-OpenSSL-RSA
 * [new ref]         b99adf89ba0184ee7b70e7d68f4b6593e692f06b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b99adf8 Perl 5.44 rebuild