fix(refs): fix ref proptypes

[redallen]

What: Fixes #2132

Additional issues:

[codecov-io]

Codecov Report

Merging #2136 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2136      +/-   ##
==========================================
+ Coverage   80.96%   80.96%   +<.01%     
==========================================
  Files         649      649              
  Lines        7885     7886       +1     
  Branches      505      505              
==========================================
+ Hits         6384     6385       +1     
  Misses       1261     1261              
  Partials      240      240

Flag	Coverage Δ
#patternfly3	85.22% <ø> (ø)	⬆️
#patternfly4	76.28% <100%> (ø)	⬆️
#patternflymisc	95.68% <ø> (ø)	⬆️

Impacted Files	Coverage Δ
...4/react-core/src/components/Select/SelectOption.js	60% <ø> (ø)	⬆️
...core/src/components/Select/CheckboxSelectOption.js	40% <ø> (ø)	⬆️
...react-core/src/components/Dropdown/DropdownItem.js	57.14% <ø> (ø)	⬆️
.../react-core/src/components/Dropdown/KebabToggle.js	100% <ø> (ø)	⬆️
...4/react-core/src/components/Select/SelectToggle.js	54.54% <ø> (ø)	⬆️
...fly-4/react-core/src/components/Dropdown/Toggle.js	58.62% <ø> (ø)	⬆️
...fly-4/react-core/src/components/Tabs/TabContent.js	83.33% <ø> (ø)	⬆️
...-core/src/components/ApplicationLauncher/Toggle.js	13.79% <ø> (ø)	⬆️
...act-core/src/components/Dropdown/DropdownToggle.js	85.71% <ø> (ø)	⬆️
.../components/ContextSelector/ContextSelectorItem.js	100% <ø> (ø)	⬆️
... and 2 more

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[patternfly-build]

PatternFly-React preview: https://2136-pr-patternfly-react-patternfly.surge.sh

[tlabaj]

closing this as issue #2132 was closed by PR #2158