$ git clone -n https://src.fedoraproject.org/rpms/kwin-x11.git /var/lib/mock/f40-build-1572212-24011/root/chroot_tmpdir/scmroot/kwin-x11
Cloning into '/var/lib/mock/f40-build-1572212-24011/root/chroot_tmpdir/scmroot/kwin-x11'...
$ git fetch origin cdd53dfb0744a6cec5a60cc545a3a7255657602f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwin-x11
 * [new ref]         cdd53dfb0744a6cec5a60cc545a3a7255657602f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cdd53df Update to 6.1.2.