The patch at the bottom would set tile_on_move to true, if the "With a dragged window" gets switched off.
Now after some sleep I found that this might really be the way upstream wants this to handle, so the patch is wrong. After enabling "With a dragged window" in xfwm4-settings which switches off the tile_on_move setting, the user can re-enable this setting by "Automatically tile windows when moving towards the screen edge" in xfwm4-tweaks-settings. (If both settings applications are opened side by side, one can watch how enabling the first disables the second.) Unfortunately not the most intuitive process. Kind regards, Bernhard