[GAMEPLAY] Black Shield anti CC effect breaks if Summon Aery shield breaks

When Morgana uses Black Shield on an ally with the Summon Aery Keystone equipped, if any damage breaks the shield given by Aery, that champion loses the CC immunity granted by Black Shield. This can be seen by the Black Shield effect disappearing from the champion info when selected, and by the VFX for Black Shield disappearing despite the magic damage shield persisting.

Steps to reproduce:

1. Morgana applies Black Shield to an ally while using the Summon Aery keystone
2. An enemy champion deals enough damage to that ally while they have the shield given by Aery to break that shield
3. An enemy champion applies a crowd control effect to that ally

This first happened to me against a Wukong. My ally Morgana gave me black shield, Wukong E'd onto me and ulted, which knocked me airborne despite me still having a rather substantial magic damage shield. I have since reproduced the results with Darius' E, and I have no reason to believe it wouldn't work with any other CC effect, given that the black shield's anti-CC effect is removed when the Summon Aery shield is broken.

Until this is fixed, I strongly suggest using other keystones on Morgana, as doing so makes Black Shielding an ally much worse than it should be.