Invulnerability Bug with Zhonya

So, I noticed that in a game just now. We were killing enemy Nexus and enemy Morgana used her Zhonya. When it ended, we already had Victory screen - but as always, move command went through and she moved a bit, just in range of my plant (I was playing Zyra), I saw that my plant hit her and she still got the damage, while every other champion got their Invulnerability around their HP bars. Looks like if you use Zhonya when that kicks in, you don't get Invulnerability.

I mean, its not a big thing since its already post-game screen really, but just wanted to throw it out there. Looks like Zhonya and stasis overall may cause some issues with being invulnerable to damage after it, if someone should be.