Rem got stuck on enemy Ivy

[toastly!]

Match ID: 79428771
Video:

My friend on Rem was attached to me and got stunned by Ivy stone form right as Tag Along ended and ended up stuck "attached" to the enemy Ivy. Rem was not truly attached as there was no healing or invulnerability, but Rem couldn't attack, use abilities, or move. Ivy had full movement including her ultimate while Rem was attached.