Although Record Store Day releases are a 'grey area', Love-To-Be entered the UK vinyl singles chart at #10 - which is still muddy as it needs to be in the overall single's chart to get viewed more as a definitive 'single' release. As it stands, it probably sits closer to special release/limited edition based on the amount physically available more than anything. Just for further headache, it was sold as a digital 'single' with the RSD specific artwork/B-side and the pairing of both songs gave way to the LIHS deluxe art for Lover-To-Be via most digital portals.
Regards,
FWD.