SERVER-85178 merged without conflicts but the result wasn't quite correct for fixes to BinData. This lambda needs to be updated to only update state for the last buffer:

https://github.com/10gen/mongo/blob/2dc9ff07c8abcac776d402d2dabdb3470d9e471c/src/mongo/bson/util/bsoncolumn_interleaved.h#L950-L953

I don't believe this is a bug that can actually be hit from SBE, but it could affect things moving forward as SBE supports pushing down more paths.