$ git clone -n https://src.fedoraproject.org/rpms/deepin-kwin.git /var/lib/mock/f42-build-3528293-46309/root/chroot_tmpdir/scmroot/deepin-kwin
Cloning into '/var/lib/mock/f42-build-3528293-46309/root/chroot_tmpdir/scmroot/deepin-kwin'...
$ git fetch origin 82bca13280e0456fa82824f2f41abf231febbaec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/deepin-kwin
 * [new ref]         82bca13280e0456fa82824f2f41abf231febbaec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82bca13 Retired: https://lists.fedoraproject.org/archives/list/devel-announce@lists.fedoraproject.org/thread/DRIWVJ7BVL3KVVX5TLC36LJPDMAO72HF/