$ git clone -n https://src.fedoraproject.org/rpms/kddockwidgets.git /var/lib/mock/f38-build-727459-100755/root/chroot_tmpdir/scmroot/kddockwidgets
Cloning into '/var/lib/mock/f38-build-727459-100755/root/chroot_tmpdir/scmroot/kddockwidgets'...
$ git fetch origin 97a3fba8f89f5b0c68c6e45cc8dab457f45a3456:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kddockwidgets
 * [new ref]         97a3fba8f89f5b0c68c6e45cc8dab457f45a3456 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97a3fba Rebuild (qt5)