Mageblood aura/buff not seen anywhere in logs

Hi there,
I have been trying to find evidence of mana regen from the mageblood potions in WCL without any success. I tried multiple types of queries for buffs/resources/casts/other, different spellIDs including ones I typed in separately based on what spellID is associated with mageblood’s effect (from google search), even tried to look at my entire mana regen logs for indirect evidence of 12 mp5 regen without any luck. There is an entry for “mana regeneration” which is 8 mp5 and I am assuming is from the nighftin soup buff. I realize that WCL only tracks what occurs during the actual fight/combat, but the buff/aura should be detectable like other buffs that are popped before a fight.
Is it a matter of WCL adding this spellID/buff/aura so it can be tracked as well? Thanks for any advice