a bug

Put the summary of the bug you're having here

What I expected to happen was...makeing a piston staircase:
Describe what you thought should happen here

What actually happened was.a repeter had a bedrock line on it in sted of the second torch.:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...