$ git clone -n https://gitee.com/gcdota930915/gnome-backgrounds.git /var/lib/mock/dist-an8.7-build-177985-59111/root/chroot_tmpdir/scmroot/gnome-backgrounds
Cloning into '/var/lib/mock/dist-an8.7-build-177985-59111/root/chroot_tmpdir/scmroot/gnome-backgrounds'...
$ git reset --hard origin/a8-poc
HEAD is now at e488c84 import gnome-backgrounds-3.28.0-1.el8.src.rpm