This is a duplicate seed bug. Both Stronghold Below and Snowy Village use the same seed, 22061 as their values. Both of these seeds in the seed picker should be separate.

Steps to reproduce:

1. Open the create new world screen (old one)
2.  Go into the seed picker and click on or tap the Stronghold below option
3. Observe the seed value number
4. Click on the Snowy Village option 
5. View its seed number

Observed results: 

The 2 seed values are the same, and when created, both worlds look the same.

Expected results: 

The 2 seeds values and worlds should be different, with different geographical features.