Sometimes GHCi gets stuck

[supki]

Every once in a while, when I'm editing A.hs, the following happens:

--> /home/m/git/stuff/src/4913
--> /home/m/git/stuff/src/A.hs

src/B.hs:10:20:
    Could not find module ‘A’
        Use -v to see a list of the files searched for.

--> /home/m/git/stuff/src/A.hs
[66 of 69] Compiling A        ( src/A.hs, interpreted )
[67 of 69] Compiling B        ( src/B.hs, interpreted ) [A changed]

src/B.hs:10:1:
    Failed to load interface for ‘A’
        Use -v to see a list of the files searched for.

Once it does, there's no way out of it besides relaunching sensei AFAICT. This appears to be Vim-related (maybe sensei should not trigger a reload on creation of 4913?).

[supki]

After some experimentation, I believe the problem is unrelated to 4913, although it may be exacerbated by it; GHCi still gets stuck on Failed to load interface for, albeit less frequently, even if changes to anything that looks like 4913 are ignored.