$ git clone -n https://gitee.com/src-anolis-os/libpng12.git /var/lib/mock/dist-an8.7-build-131286-46340/root/chroot_tmpdir/scmroot/libpng12
Cloning into '/var/lib/mock/dist-an8.7-build-131286-46340/root/chroot_tmpdir/scmroot/libpng12'...
$ git reset --hard origin/a8
HEAD is now at 0b86d18 spec: add doc sub package