v9 UseTransitionProps Type should implement ref property.

[TimoP]

🐛 Bug Report

If i use UseTransitionProps to create an useTransition config incl. ref than TS is complaining that ref is not part of UseTransitionProps. I take a look at the types an ref is realy not part of UseTransitionProps. If i put the config directly in the useTransition() hook than no error is appearing because of the UnknownProps extendtion direct in function declaration.

To Reproduce

Use UseTransitionProps type and set ref.

Expected behavior

ref should be part of UseTransitionProps type.

Link to repro (highly encouraged)

CodeSandbox demo

Environment

• react-spring v9.0.0-beta.34
• react v16.8.4
• typescript v3.3.3

[TimoP]

Updated with more information and added the bug report layout.

[aleclarson]

This is fixed in #809