Lua folding incorrect scenario

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### How are you using the lua-language-server?

Visual Studio Code Extension (sumneko.lua)

### Which OS are you using?

Windows

### What is the issue affecting?

Other

### Expected Behaviour

Lua code proper folding

--[[ API
--]]
function TitanUtils_GetRealPosition(id) -- Used by me
end

### Actual Behaviour

--[[ API
-- Even better coding
return 1
end

### Reproduction steps

Use control+k control+1 on code below

Removing the comment at end of function
OR
adding a line above function folds properly.

### Additional Notes

--[[ API
- My fantastic description here
--]]
function TitanUtils_GetRealPosition(id) -- Used by me
-- Even better coding
return 1
end

### Log File

_No response_

Reproduce the behavior in the Visual Studio Code extension using the provided Lua snippets and Ctrl+K Ctrl+1. Compare folding with the trailing function comment, with the comment removed, and after adding a line above the function; done means all variants fold the Lua code properly.

Written by the indexing model from the issue text.