Fetching for Previews not working when @FetchAll is in a TCA reducer

[OddMagnet]

I'm currently playing around with AI, using "The Pointfree Way" to create a TCA App with SQLiteData.
I already have an older app, where I have previews working, but I can't find whatever is causing it to not work with what I'm doing now.

Here's the code I currently have:
Reducer

import ComposableArchitecture
import SQLiteData

@Reducer struct SidebarFeature {
    @ObservableState struct State {
        var selectedFilter: IssueFilter? = .all
        @FetchAll(Tag.all) var tags
    }

    enum Action: BindableAction {
        case binding(BindingAction<State>)
    }

    var body: some Reducer<State, Action> {
        BindingReducer()
    }
}

View

import ComposableArchitecture
import SwiftUI

struct SidebarView: View {
    @Bindable var store: StoreOf<SidebarFeature>

    var body: some View {
        List(selection: $store.selectedFilter) {
            Section("Smart Filters") { /* ... */ }

            Section("Tags") {
                if store.tags.isEmpty {
                    Text("No tags yet")
                } else {
                    ForEach(store.tags) { tag in
                        FilterRow(filter: .tag(tag))
                    }
                }
            }
        }
        .navigationTitle("Filters")
    }
}

struct FilterRow: View {
    let filter: IssueFilter

    var body: some View {
        Label(filter.title, systemImage: filter.systemImage)
            .tag(filter)
    }
}

#Preview {
    let _ = prepareDependencies {
        try! $0.bootstrapDatabase()
    }
    NavigationView {
        SidebarView(
            store: Store(initialState: SidebarFeature.State()) {
                SidebarFeature()
            }
        )
    }
}

and the bootstrapping

import Dependencies
import OSLog
import SQLiteData

private nonisolated let logger = Logger(...)

extension DependencyValues {
    mutating func bootstrapDatabase() throws {
        var configuration = Configuration()
        #if DEBUG
            let currentContext = context
            configuration.prepareDatabase { db in
                db.trace(options: .profile) {
                    guard !$0.expandedDescription.hasPrefix("--") else { return }
                    switch currentContext {
                    case .live:
                        logger.debug("\($0.expandedDescription)")
                    case .preview:
                        print($0.expandedDescription)
                    case .test:
                        break
                    }
                }
            }
        #endif
        let database = try SQLiteData.defaultDatabase(configuration: configuration)

        var migrator = DatabaseMigrator()
        #if DEBUG
            migrator.eraseDatabaseOnSchemaChange = true
        #endif

        migrator.registerMigration("Create 'issues', 'tags', and 'issueTags' tables") { /* ... */ }

        try migrator.migrate(database)

        #if DEBUG
            debugPrint("Seeding samples...")
            try database.write { db in
                try db.seedSampleData()
            }
        #endif

        defaultDatabase = database
    }
}

When I run it in a simulator, it works as expected. When I try to use the preview, I can see the same output from SQLiteData (creating tables, inserting sample data), but I don't see the SELECT ... FROM tags that I get when it runs in the simulator.

[OddMagnet]

My old project had SQLite-Data on version 1.4.1, so I thought I'd try to update and see if it still works. Interestingly enough it didn't once I updated to 1.5.1

I've stepped through the versions, but couldn't reproduce it, until I noticed that the other package with a version difference between the project was swift-dependencies.

In the old project, swift-depencencies was on 1.10.0, in the new one 1.11.0
By moving to 1.10.1 I was able to reproduce the problem in the old project

[stephencelis]

@OddMagnet I'm a little unclear on where you're at right now. Are you in a good state, or are you still troubleshooting? Are you experiencing problems with the newest versions of everything? Or did things improve when you reverted certain dependencies to certain older versions? (And if so, which versions?)

[OddMagnet]

I think I'm done troubleshooting. The problem only exists when I have swift-dependencies at 1.10.1 or above.
When downgrading swift-dependencies to 1.10.0 it works as expected

I've created a bug report for swift-dependencies here: pointfreeco/swift-dependencies#417