I ran into a challenge similar to the one with the race item before, where the first element of arrays was getting extracted. Jordan and I came up with the fix in 8580a39 for it yesterday. It might have unintended side-effects, but so far, it doesn't seem to.

can you create an example in demo-protocol to illustrate the issue? mostly because i thought this was no longer an issue. so there must a case where this still happens.

Yes, it only seems to show up with nested activities. Since this fix unblocks me on interactively validating the mood protocol, I'm going to prioritize that over making a minimal example and giving a long explanation of the reasoning for this fix, but I will loop back to this.

i'm closing this as this should have been fixed (and upgraded) in the PR that was merged #343