desert_sheperd_house_1 structure duplicates desert_shepherd_house_1 structure

The bug

There exist 2 absolutely identical desert shepherd's houses. This makes the shepherd's house twice as common which prevents variety in villages.

This also occurs with desert and taiga blacksmiths, see MC-141004 and MC-141007.

How to reproduce

Either load two structures listed in chat in the screenshot below:

Or open the 18w50a.jar file in the version folder in the .minecraft depository and see the following:

How to solve

Delete the desert_sheperd_house_1.nbt file from the 18w50a.jar file.