embedded_watcher makes AssetPlugin very slow in workspace packages

[UkoeHB]

Bevy version

v0.15.1

[Optional] Relevant system information

MacOS

What you did

• Using a workspace. The asset dir is at the root level and binaries are in a bins directory.
• Set the BEVY_ASSET_ROOT env variable to {CARGO_MANIFEST_DIR}/../../assets.
• Enabled the embedded_watcher feature.
• Ran the binary with cargo run -p <my_binary>.

What went wrong

Building the AssetPlugin takes ~5-10 seconds. Profiling exposed EmbeddedWatcher::new -> notify_debouncer_full::Debouncer::watch as the culprit.

My guess is the debouncer doesn't like it when the root path passed in has /../. Possibly related to #17265

[andriyDev]

Could you try this again with Bevy 0.16? We added #18023 and #18345 which I think should remove any ../ in the path.