Tahm Kench bug.

Hello, recently i watched a youtube video by shaclone showing this tahm bug. If tahm has heal/or barrier and he eats an ally and the same ally spams left click while inside tahm, he will be healed by the summoner spell even if tahm didnt use it himself, and the summoner does not go on cooldown. The bug is shown in the video 1:15 seconds in. Have a wonderful day! please upvote to get this fixed asap!