$ git clone -n https://gitee.com/mgb01105731/perl-bignum_1.git /var/lib/mock/dist-an23-build-214495-61978/root/chroot_tmpdir/scmroot/perl-bignum_1
Cloning into '/var/lib/mock/dist-an23-build-214495-61978/root/chroot_tmpdir/scmroot/perl-bignum_1'...
$ git reset --hard origin/a23
HEAD is now at b817556 update to version 0.66