$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/perl-Class-Singleton.git /var/lib/mock/dist-an7-build-29514-15397/root/chroot_tmpdir/scmroot/perl-Class-Singleton
Cloning into '/var/lib/mock/dist-an7-build-29514-15397/root/chroot_tmpdir/scmroot/perl-Class-Singleton'...
$ git reset --hard origin/a7
HEAD is now at c7c3235 import perl-Class-Singleton-1.4-14.el7.src.rpm