XML lua calls cannot call functions from inside tables

[dore0062]

Describe the bug
XML LUA calls cannot call a function from a table.

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Lua Scripts & XML UI:
If applicable, Lua:

myFunc = {}
function myFunc.F()
print("F")
end

If applicable, XML:

<button onClick="myFunc.F"/>

Known workarounds
Don't use tables for functions, or have a function that can take another value and call it from that table.

Additional context
Probably an oversight more then a bug.