Thunder Strike is supposed to continue striking the target's death location when they die. This works fine for unit that don't respawn. But for respawning units, it resumes following the target as soon as they respawn.

This is an issue when using buyback, and Spirit Bear and Tempest Double when they get resummoned.

When the target dies, the effect should stay at their death location and no longer follow the target, even when they respawn.