Conditional loading of packages – a bug?

[kellertuer]

I have a question about conditional loading of packages.
Short background: We have a Pluto notebook with interactive parts that we also want to include in the docs (using PlutoStaticHTML). For that we have a Boolean to toggle to “static mode” of the notebook, since we can not use WGLMakie.jl in the CI. So we only load that if the toggle is true.

If I recreate that scenario (with our package as an example, which defines is_point) on Julia REPL, I get

❯ julia
               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.8.1 (2022-09-06)
 _/ |\__'_|_|_|\__'_|  |  Official https://julialang.org/ release
|__/                   |

julia> a = false
false

julia> a && using Manifolds
false

julia> is_point
ERROR: UndefVarError: is_point not defined

julia> 

If I do the same three things in a Pluto Notebook, I get

even if I do not use the Pluto package manager I get (yes Manifolds is installed in my global environment ;) )

So – is that a bug?
Or phrased differently: How can I achieve the result from Julia REPL, conditionally loading a package, in Pluto?

[fonsp]

@Pangoraw