Issue description:

constructors should replace fluid but don't.

What happens:

a constructor will not do anything if there's a block in front of it

What you expected to happen:

the constructor will place the selected block, replacing the fluid

Steps to reproduce:

1. set up a basic network with some blocks (any one will work) and add a constructor to it
2. place a fluid in front of it
3. set it to any block

Version (make sure you are on the latest version before reporting):

• Minecraft: 1.12.2
• Forge: 14.23.5.2838
• Refined Storage: 1.6.15

Does this issue occur on a server? [yes/no]
probably, but not confirmed

If a (crash)log is relevant for this issue, link it here:

This is fixed for 1.14. This bug is very minor however, so it won't be fixed in 1.12.