I only checked the effects in the inventory. I'll check it in the active effects in the afternoon.
The fortify conjuration should be affected by the potion, as it is a restoration effect. If it isn't, it can be a bug, like for example, if you use a dagger, it is not affected by the fortify one handed effect (neither potion nor enchantment), but is affected by fortify archery.
I only checked the effects in the inventory. I'll check it in the active effects in the afternoon.
The fortify conjuration should be affected by the potion, as it is a restoration effect. If it isn't, it can be a bug, like for example, if you use a dagger, it is not affected by the fortify one handed effect (neither potion nor enchantment), but is affected by fortify archery.