Strange behaviour importing function from module (with \loadModule)

[pedro-psb]

Hello.
I was trying to load a module that would provide some void-functions to the working .ly. When trying to use the function, I would get an "unknown escaped string" error. After some testing, I've figured that for some reason I should put 'anything' before calling the function.

This would rise an error:

\loadModule pessoa-oll-pkg.test-load-module-I
\fooVoidFunction % just displays "foo function"

While this would work fine:

\loadModule pessoa-oll-pkg.test-load-module-I
{} 
\fooVoidFunction

I've setup a mwe here. I wasn't sure if it was related to the loadModule, but is seems to be the case, since if I load the module.ily with a straight \include the first example works fine.
The workaround I came up for now is just putting anything right after loading the module.