Limited support for multiple cores/environments

This could be a feature request, except that there is currently some unintended behavior that is at the least confusing, at the worst "buggy".

To recreate:
Create two cores (solr0, solr1)
Create an environment in Drupal apachesolr admin page for each core (solr, solr1)
Make both environments multisite
Set up both environments the same on another site

As a result, the multisite sites that are available to search, not search, exchange meta data, etc, are only provided for solr0/solr (the default environment, in other words). However, the solr0/solr multisite stuff is available for solr1/solr1, when at the least it shouldn't be.

Here is a sample use case:
User handling is super awkward, what with a separate apachesolr_user module, and apachesolr_views doesn't appear to allow for multi-field searching (why is it even there?). If I want to separate my user search into its own visual space on the page, I need to rig my own query and render in code and stick it in the template (or apachesolr_panels, or whatever). I've determined the best way to do that would be to create a separate environment that only targets users, and just on one site. On the other sites, it would be "read only". The other sites can't find a second environment, so I'm stuck.