I'm using the common form block to create a signup for all of our email lists, and have discovered that it uses the first list's long action name for the description text. It would be really handy to have a setting specifically for this block, either:

* A special field for the common form long action text
and/or
* A way to select which list's long action text gets used.

As it turns out, for us the list with the broadest audience is first in alphabetical order, so it comes out OK, but that might not always be true!