Mineshafts can intersect ancient cities

The Bug:

Mineshafts can intersect ancient cities.

Here is an example:

Seed: 5411832338774910966
Coordinates: /execute in minecraft:overworld run tp @s 8146.15 -42.00 498.96 142.04 18.90

Steps to Reproduce:

1. Generate a world with the seed provided above and teleport to the given coordinates.
2. Look closely at the generation of the mineshaft and ancient city.
3. Take note as to whether or not mineshafts can intersect ancient cities.

Observed Behavior:

Mineshafts can intersect ancient cities.

Expected Behavior:

Mineshafts would not be able to intersect ancient cities.