Fix incorrect mana alpha when max mana is 0

IceUnitBar.lua

@@ -243,7 +243,14 @@ function IceUnitBar.prototype:Update()
 		self.mana = IceHUD:MathRound(self.mana / 100)
 		self.maxMana = IceHUD:MathRound(self.maxMana / 100)
 	end
-	self.manaPercentage = self.maxMana ~= 0 and (self.mana/self.maxMana) or 0
+
+	-- account for cases where maxMana is 0, perhaps briefly (during certain spells, for example)
+	-- and properly handle it as full. this allows for proper alpha handling during these times.
+	if self.maxMana == self.mana then
+		self.manaPercentage = 1
+	else
+		self.manaPercentage = self.maxMana ~= 0 and (self.mana/self.maxMana) or 0
+	end
 
 	local locClass
 	locClass, self.unitClass = UnitClass(self.unit)

changelog.md

@@ -3,6 +3,7 @@
 vNext:
 
 - Activated Totems module for all classes in Shadowlands. Some class abilities spawn units that live for a specific amount of time, and the game handles these as Totems.
+- Fixed an issue where mana bars could use the wrong alpha settings if the player's maximum mana was 0 (such as during the use of Soulshape).
 
 v1.13.2: