Mortar and Overabundance Totem Issues

Playing a Ballista Build Tactician with "Cannons, Ready!" (though I'd guess it doesn't matter for these bugs). Three potential issues noticed:

- Mortar Cannons seem to be limit 2 despite saying they are limit 1. I can summon 3 of them (w/ Cannons Ready), but only 2 of the other Ballista.
- In order to make Overabundance work with totems, I need to summon them first. IE: if I drop 1 Artillery (w/ Overabundance) and then summon 3 Mortar, I get 1 Artillery + 3 Morter. But if I drop them in the other order (3 Mortar, 1 Artillery), I lose a Mortar (2 Mortar, 1 Artillery).
- Only one instance of the Overabundance support gem seems to get factored in; if I have Overabundance on Artillery and Siege Ballistas, I can get one of them to have an extra totem, but not both (and the one I get is always the later-dropped one). IE: if I drop 1 Siege and then 1 Artillery (both w/ Overabundance), then drop 3 Mortar, I'll end up with 3 Mortar, 1 Artillery (Siege will despawn, despite both skills being active; Overabundance should be giving +1 Limit twice).