Subtitle for armor stands falling matches, but is distinct from, all other entities falling

Relates to MC-215436, MC-308964, MC-311734 and MC-312312.

When an entity falls from a given height and impacts the ground, the caption displayed as of 26.4 snapshot 2 is “Something falls”. This goes for armor stands as well as most living entites. However, for some reason, armor stands use a completely different subtitle which contains the exact same text string.

To reproduce, pick up an armor stand, go to the edge of a block above a height, place the armor stand on the side of one of those blocks and fall alongside it, noting the subtitles produced.

Expected results: “Something falls” would appear once.

Actual results: it appears twice.

How to fix: either armor stands should have their subtitle changed to be distinct, or both should be pointed into the generic entity fall subtitle string to avoid duplication.