Opposition school spells that use 2 spell slots not counted properly when selecting buff targets

[birick]

Describe the bug Consider these conditions:

• Caster is not spontaneous
• Caster has an opposition school (example: Divination)
• Caster slots a spell from the opposition school (example: True Seeing)

In this case, the spell requires two spell slots (per 1 cast).

Then in the mod, select the spell (e.g. True Seeing) from the opposition school and select targets. The mod will allow you to select 2 targets per the two spell slots consumed - this is incorrect.

Expected behavior The mod should only allow 1 target to be selected per 2 spell slots when using a spell from an opposition school.

[birick]

Discovered this bug while testing Azata Zippy Magic enhancements. Fixed in commit 69018f246487926f5b25358ff5dd6be9ff522d3d and 69018f246487926f5b25358ff5dd6be9ff522d3d to pull request.