$ git clone -n https://src.fedoraproject.org/rpms/gnome-sudoku.git /var/lib/mock/f40-build-2048379-48992/root/chroot_tmpdir/scmroot/gnome-sudoku
Cloning into '/var/lib/mock/f40-build-2048379-48992/root/chroot_tmpdir/scmroot/gnome-sudoku'...
$ git fetch origin 5777685d1c7fab4cefc23adf049dce53f93c90e2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-sudoku
 * [new ref]         5777685d1c7fab4cefc23adf049dce53f93c90e2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5777685 Update to 45.3