#25238 Fixes a bug causing duplicates to show up in the type list.
Previously, the type list showed a raw dump of the shotgun data. This
meant that if you had two types in this list both named "maya anim", you
would have two "maya anim" entries showing up, which is confusing. This
is common if you still use the tank types (or in some cases have
converted from from the tank types). This change collapses type entries
with the same name down to a single entry.