$ git clone -n https://gitee.com/gaohongmei/perl-bignum.git /var/lib/mock/dist-an23-build-171356-58935/root/chroot_tmpdir/scmroot/perl-bignum
Cloning into '/var/lib/mock/dist-an23-build-171356-58935/root/chroot_tmpdir/scmroot/perl-bignum'...
$ git reset --hard 64aab417f90a3e07dd50cbdb2807317e3eda0571
HEAD is now at 64aab41 spec: add sub doc package