The bug

Being damaged by a falling stalactite shows the message "<Player> was skewered by a falling stalactite", but taking lethal fall damage after being damaged by a falling stalactite shows the message "<Player> was doomed to fall by Falling Pointed Dripstone". It is expected that both messages would refer to the same block in the same way.

Expected result

Either of these would be consistent between each other:

"<Player> was skewered by Falling Pointed Dripstone"
"<Player> was doomed to fall by Falling Pointed Dripstone"

"<Player> was skewered by a falling stalactite"
"<Player> was doomed to fall by a falling stalactite"