Is it normal when touching BUILD files to need to restart pantsd? For some reason I thought it could watch BUILD files for changes and invalidate the target defs that come from them, but it doesn't seem to work that way

I don't think that's normal, otherwise

pants fmt ::

would end up in a whacky loop.

That's definitely not normal

it's been reported by some of our dev that are trying to integrate more with pants, I'll try and look into it