When Ursa has Aghanim's Scepter and does teleport to somewhere if he uses ultimate it disobeys "Teleport Required Hold/Stop" option and cancels a teleportation

1) Activate "Teleport Required Hold/Stop" option
2) Level Up Ursa to Level 6 and increase ultimate
3) Buy Aghanim's Scepter
4) Use Teleport Scroll/Boots of Travel
5) While channeling teleport cast ultimate ability

Teleport will be cancelled even though "Teleport Required Hold/Stop" option is active

Teleport continues channeling and ultimate is used only after teleport is done