$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/gdm /var/lib/mock/dist-el8-build-5577-34/root/chroot_tmpdir/scmroot/gdm
Cloning into '/var/lib/mock/dist-el8-build-5577-34/root/chroot_tmpdir/scmroot/gdm'...
$ git reset --hard origin/a8
HEAD is now at 0dd7e44 import gdm-3.28.3-29.el8.src.rpm