$ git clone -n http://8.131.229.236/anolis-os/ustr /var/lib/mock/dist-el8-build-9025-1494/root/chroot_tmpdir/scmroot/ustr
Cloning into '/var/lib/mock/dist-el8-build-9025-1494/root/chroot_tmpdir/scmroot/ustr'...
$ git reset --hard origin/a8
HEAD is now at 4a49b15 import ustr-1.0.4-26.el8.src.rpm