Hi everyone, I'm doing some cluster versioning split testing, and I've come across this property in the result body:

results[x].requests_params.first_q

Does anyone know what this property is supposed to represent, and if so, how it might have changed behavior from v26.0 to v28.0? To give a bit more context. Doing a search with

q: COSTUME LUGI

produces

first_q: costume

in the result on the v26.0 cluster, while it results

first_q: COSTUME LUGI

on the v28.0 cluster. Both clusters are a copy of each other, using the same synonyms + presets, etc. I've search the online documentation without luck - any ideas?