Default to a specific file using multiple keys

[sodapopcan]

Apologies for the subject/description, I had a really tough time coming up with a one sentence summary.

With this directory structure:

lib/
  ops.ex
  ops/
    accounts/
      filters.ex
    suppliers.ex
test/
  ops/
    suppliers_test.exs

I would like the command :Edomain without arguments to edit lib/ops.ex and otherwise edit files within lib/ops/*.ex.

I can accomplish this with the following:

let g:projectionist_heuristics['mix.exs'] = {
      \   'lib/ops.ex': {
      \     'type': 'domain',
      \   },
      \   'lib/ops/*.ex': {
      \     'type': 'domain'
      \   }
      \ }

However, as soon as I introduce an alternate file to either command, things get a little funky.

let g:projectionist_heuristics['mix.exs'] = {
      \   'lib/ops.ex': {
      \     'type': 'domain',
      \   },
      \   'lib/ops/*.ex': {
      \     'type': 'domain',
      \     'alternate': 'test/ops/{}_test.exs' " <----- Add this
      \   }
      \ }

Now calling :Edomain (no args) on a file within lib/ops/ that doesn't have a test will take me to the depth-first file under that dir--In my case that's opts/accounts/filters.ex. Calling it on a file with a test, in my case lib/ops/suppliers.ex, will be a no-op (leaving me on the current file). Otherwise, calling it from outside lib/ops will take me to lib/ops.ex.

I've tried some hacks like adding: 'related': ['lib/ops.ex'] under both keys to no avail.

I know it's documented that alternate will be used as the default for related but I don't think that matches up with what I'm seeing here.

Is this a bug or to be expected?

I created a small sample app here.

I've actually found this behaviour to be somewhat random (race condition, perhaps?). For example, sometimes calling :Edo on the suppliers.ex will take me to the filters.ex file, but other times it will be a no-op.

Thanks!