v0.8.9 sidecar build fails: ferricula::Row has no field 'refs'

[kordless]

The v0.8.9 sidecar fails to compile against the latest published ferricula (v0.9.4 at time of filing). The hyperia code references a refs field on ferricula::Row that doesn't exist in any pushed ferricula release.

Failure

error[E0560]: struct `Row` has no field named `refs`
   --> sidecar/src/ghost/ferricula.rs:267:17
    |
267 |                 refs: None,
    |                 ^^^^ `Row` does not have this field

error[E0560]: struct `Row` has no field named `refs`
   --> sidecar/src/ghost/ferricula.rs:330:71
    |
330 |                 let row = ferricula::Row { id: next_id, tags, vector, refs: None };
    |                                                                       ^^^^

Repro

cd hyperia
git pull   # at fd414ead or later
cd ../ferricula
git pull   # at 4fbb497 / v0.9.4
cd ../hyperia/sidecar
cargo build --release --target x86_64-apple-darwin

ferricula at v0.9.4 — Row definition

// ferricula/src/model.rs
pub struct Row {
    pub id: u32,
    pub tags: std::collections::BTreeMap<String, String>,
    pub vector: Vec<f32>,
}

No refs field anywhere in ferricula/src/.

Likely cause

Either:

1. There are unpushed ferricula changes on the original build machine that add refs: Option<...> to Row. The hyperia commit using refs (v0.8.9) was pushed before the matching ferricula change was pushed.
2. The hyperia code should not reference refs — leftover from a never-merged ferricula proposal.

Impact

Blocks the macOS build of v0.8.9 from any other machine — the only artifacts on the v0.8.9 release that matched (the unsigned mac dmgs uploaded earlier) were built from pre-0.8.9 source code with the version stamped to 0.8.9, which is why settings buttons / editor default / install nemesis don't work in those builds.

Fix

Either push the ferricula change that adds refs to Row, or remove the two refs: None lines from sidecar/src/ghost/ferricula.rs (lines 267 and 330).