Stewart Robert Hinsley writes
It has the inflorescence of cloudberry (R. chamaemprus), the leaves of
stone bramble (R. saxatilis) and the fruit of Chinese creeping bramble
(R. tricolor). I think we can deduce that it is a Rubus, but I'm still
baffled as to which species.

Following up my comment about the plant I used to have, form Sweden,
I've tried googling on 'Rubus Sweden'. That threw me up lots of
chamaemorus and also Rubus arcticus - which has pink flowers.

Let us know when you find out what it is!

--
Kay