score:3
Yes (emphasis mine):
Lufthansa says:
Operationally necessary seat changes
If Lufthansa has to change your seat reservation, for example because of a last-minute change to the aircraft type deployed, Lufthansa will do its best to reserve a new, equivalent seat for you automatically. In these cases priority is firstly given to passengers who are travelling together, such as families, so that they can still sit next to each other. After that, there is the allocation of seats with more legroom in the emergency exit rows and of aisle, window and middle seats. If it is not possible to allocate you a new seat equivalent to your original, then you are entitled to a refund of the amount you paid for your seat reservation. Please contact the Lufthansa Service Center to arrange this. Where seat changes have to be made for operationally necessary reasons, you unfortunately have no legal right to a certain seat, only to the category, such as an aisle or window seat.