Changing options `warn` causes infinite waiting on a multisession in RStudio Rmd

That is a really cryptic issue, and I am not sure whether it has to do with globals being set.

**Reproduce example**
The following infinitely waits in RStudio (in WSL2) but runs OK in an R terminal:
```
op <- options(warn = 2)$warn
future::plan(future::multisession, workers = 2)
future.apply::future_lapply(
X=seq(10),
FUN=function(x){
print(x)
}
)
```

**Session information**

```
R version 4.3.3 (2024-02-29)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 24.04.2 LTS

Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/openblas-pthread/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/openblas-pthread/libopenblasp-r0.3.26.so; LAPACK version 3.12.0

locale:
[1] LC_CTYPE=C.UTF-8 LC_NUMERIC=C LC_TIME=C.UTF-8 LC_COLLATE=C.UTF-8 LC_MONETARY=C.UTF-8
[6] LC_MESSAGES=C.UTF-8 LC_PAPER=C.UTF-8 LC_NAME=C LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C

time zone: Europe/Brussels
tzcode source: system (glibc)

attached base packages:
[1] stats graphics grDevices utils datasets methods base

loaded via a namespace (and not attached):
[1] compiler_4.3.3 parallelly_1.45.1 parallel_4.3.3 tools_4.3.3 rstudioapi_0.17.1 future.apply_1.20.0
[7] listenv_0.9.1 codetools_0.2-19 digest_0.6.37 globals_0.18.0 future_1.67.0
```