Adding any amount of base crit to certain self-hits makes them always crit

While affected by Brittle (or the Hits have +10% additional Critical Strike Chance against you body armour mod from Scourge league), certain self-damage appears to always crit, despite the crit chance being nowhere near 100%.

Examples of self-hits that have this behaviour are Replica Tulfall, Storm Secret, and Forbidden Rite. Strangely, Eye of Innocence and Scold's Bridle don't.

Bug report number 280,822,362