Exclusion of variant_id from InventoryItem Webhooks

Given the 1-to-1 relationship between a Variant and an InventoryItem, and the fact that the variants within the products webhook topics each include their respective inventory_item_id, is there some reason for the omission of variant_id from the inventory_items webhook topics? Having that link on one side of the equation, but not the other, seems like a bit of an oversight. Given the expansion of the number of product variants from 100 to 2000 and the fact that developers now have to query the API to determine when fields on the objects were updated vs. run of the mill inventory updates, having that link to the variant_id might go a long way in helping developers cut down the number of queries they’re forced to make.

Added inventory