Current behaviour: Specialist mages are not restricted from casting spells from their opposing school from scrolls.
Expected behaviour: Specialist mages should be restricted from casting spells from their opposing school from scrolls.
Games affected: BG1, BGEE.
Notes: Specialists are still prevented from scribing such scrolls. This behaviour was present in vanilla BG1, as there were no usability flags for specialist mages at that stage. (At least, that's what I would surmise, judging from the file structure in NearInfinity.) Scrolls were flagged as appropriate in BG2, however. This looks to be another byproduct of using the BG1 assets.