Put the summary of the bug you're having here
What I expected to happen was:
In previous version the "Fn" key could be assigned as a key under "Controls" and this was convenient as it made sprinting comfortable on mac keyboards.
What actually happened was.
Now when you try to add the "Fn" key as a control in "Controls" nothing happens. It acts as if you aren't pressing it.
Steps to Reproduce:
1.Go to "Controls"
2.Select any key to change
3.Press the "Fn" key to assign the key to a control, but nothing will happen.
Linked issues
Comments


This really sucks for mac users. It's worked fine until the 1.13 snapshots came out. I don't see whats changed.
Duplicate of MC-121389.
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