fix(pf4): enable searchable select to use space key.

Author: Hyperkid123

packages/pf4-component-mapper/demo/demo-schemas/select-schema.js

@@ -164,6 +164,5 @@ const selectSchema = {
 };
 
 export default {
-  ...selectSchema,
-  fields: [selectSchema.fields[0]]
+  ...selectSchema
 };

packages/pf4-component-mapper/src/common/select/input.js

@@ -14,6 +14,10 @@ const Input = ({ inputRef, isSearchable, isDisabled, getInputProps, value, ...pr
       {...{
         ...inputProps,
         value: inputProps.value || '',
+        onKeyDown: (event, ...args) => {
+          event.stopPropagation();
+          inputProps.onKeyDown(event, ...args);
+        },
         onChange: inputProps.onChange || Function
       }}
     />