$ git clone -n https://gitee.com/fundawang/libarchive.git /var/lib/mock/dist-an23-build-287399-64835/root/chroot_tmpdir/scmroot/libarchive
Cloning into '/var/lib/mock/dist-an23-build-287399-64835/root/chroot_tmpdir/scmroot/libarchive'...
$ git fetch origin 6a4f02c5135b5ba66bdd925f771b7fd9511e3b87:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/libarchive
 * [new ref]         6a4f02c5135b5ba66bdd925f771b7fd9511e3b87 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a4f02c update