:type-at doesn't work when :load-ing with module name instead of file path

After running

stack new something
cd something

we have a file in src/Lib.hs with the contents:

module Lib
    ( someFunc
    ) where

someFunc :: IO ()
someFunc = putStrLn "someFunc"

If we start stack ghci, we can have the following session showing the errors:

> :set +c
> :l Lib
[1 of 1] Compiling Lib              ( /home/jol/work-for/me/something/src/Lib.hs, interpreted )
Ok, one module loaded.
Collecting type info for 1 module(s) ... 
> :type-at Lib 6 12 6 20

<no location info>: error: not an expression: ‘’
> :type-at src/Lib.hs 6 12 6 20
Couldn't guess that module name. Does it exist?

If we had done :l src/Lib.hs instead, then we can use the filepath like the following, but still not the module name:

> :set +c
> :l src/Lib.hs
[1 of 1] Compiling Lib              ( src/Lib.hs, interpreted )
Ok, one module loaded.
Collecting type info for 1 module(s) ... 
> :type-at Lib 6 12 6 20

<no location info>: error: not an expression: ‘’
> :type-at src/Lib.hs 6 12 6 20
 :: String -> IO ()

Trac metadata

Trac field	Value
Version	8.2.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
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