It is mixed between the different parties, and the parties' own positions change. So I think there's now no party that says it will not allow a candidate to be on both, but ultimately, we're not really privy to how they go about making their selections. But it would appear to us that they are now all comfortable with having people appear on both.
So, for example, our current first minister was originally elected twice to the Scottish Parliament as a list MSP and only at the last election before this one did she come on as a constituency MSP.