[Bug]: `MAE` with `matrix` assay cannot be snapshoted and restored (from UI or from file)

[averissimo]

What happened?

The state of slices_global does not store the experiment name in the teal app, so

How to reproduce?

• Run app below
• Add filter in mae -> Mutations
• Create snapshot
• Option 1
  • Reset all filters
  • Apply snapshot
• Option 2
  • Save snapshot to file
  • Reset all filters
  • Upload snapshot file

Notice that the mutations filter is missing

App

Click here to see teal app definition

pkgload::load_all("/home/averissimo/work/roche🟦/packages📦/teal.slice")
pkgload::load_all("/home/averissimo/work/roche🟦/packages📦/teal")

options(
  teal.log_level = "TRACE",
  teal.log_layout = paste(
    "{crayon::bold(logger::colorize_by_log_level(level, levelr))}",
    "from {namespace}",
    "[{crayon::italic(format(time, \"%Y-%m-%d %H:%M:%S\"))}]",
    "{logger::grayscale_by_log_level(msg, levelr)}"
  ),
  teal.show_js_log = TRUE,
  # teal.bs_theme = bslib::bs_theme(version = 5),
  shiny.bookmarkStore = "server"
)

app <- init(
  data = teal_data() |> within({
    env_temp <- new.env()
    data("miniACC", package = "MultiAssayExperiment", envir = env_temp)
    mae <- env_temp$miniACC
    rm(env_temp)
  }),
  filter = teal_slices(
    # teal_slice("mae", "TCGA-OR-A5J3-01A-11D-A29I-10", selected = character(0), experiment = "Mutations", arg = "subset")
  ),
  modules = modules(
    example_module("example")
  )
)

shiny::runApp(app)

Origin of bug

The FilterStatesMatrix class inherits the srv_add method that generates a teal_slice that doesn't store the experiment / arg attributes.

Snapshot file inspected

Notice the missing experiment and arg attributes

{
  "slices": [
    {
      "dataname"       : "mae",
      "varname"        : "TCGA-OR-A5J5-01A-11D-A29I-10",
      "id"             : "mae TCGA-OR-A5J5-01A-11D-A29I-10",
      "choices"        : ["0", "1"],
      "selected"       : ["0", "1"],
      "fixed"          : false,
      "anchored"       : false,
      "multiple"       : true
    }
  ],
  "..."
}

sessionInfo()

No response

Relevant log output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct.

Contribution Guidelines

• I agree to follow this project's Contribution Guidelines.

Security Policy

• I agree to follow this project's Security Policy.