Can't disable wasm-opt for a workspace package

[cvermilion]

Demo repo here: https://github.com/remixlabs/wasm-opt-bug.

As far as I can tell, setting wasm-opt = false in Cargo.toml as described here works for a standalone package, but not for a workspace package.

Things I've tried:

# in package's Cargo.toml
[package.metadata]
wasm-opt = false

# in workspace's Cargo.toml
[package.metadata]
wasm-opt = false

# in workspace's Cargo.toml
[workspace.package.metadata]
wasm-opt = false

# in workspace's Cargo.toml
[workspace.metadata]
wasm-opt = false

None seem to disable wasm-opt when building in release mode. (The "Optimizing with wasm-opt" log line is still printed, and the output size is the optimized size.)

See the linked repo above for more details.