$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gstreamer1-plugins-base /var/lib/mock/dist-el8-build-7191-397/root/chroot_tmpdir/scmroot/gstreamer1-plugins-base
Cloning into '/var/lib/mock/dist-el8-build-7191-397/root/chroot_tmpdir/scmroot/gstreamer1-plugins-base'...
$ git reset --hard origin/a8
HEAD is now at c8d88f2 import gstreamer1-plugins-base-1.16.1-1.el8.src.rpm