I'm working on a site that has two different entry types (e.g., "blog" and "photos"), and each type has it's own tag group. When viewing a particular entry, I'd like to display related entries found in both entry types.
So, for example, let's say that I've written "Entry A" and "Entry B" -- "Entry A" is in "blog" and "Entry B" is a "photos." They both have the same tag ("foo"), but that tag exists in each entry type's respective tag group.
If I view "Entry A," can I display a list of related entries that includes "Entry B" even though the tag that they share isn't in the same tag group?