Passthrough the initialValues prop to the enhanced component.

Fix redux-form#1570.

docs/api/Props.md

@@ -167,6 +167,10 @@ that as if it were the error for a field called `_error`, and it will be given a
 determined by comparing the current data with these initialized values.
 This is a bound action creator, so it returns nothing.
 
+#### `initialValues : Object`
+
+> The same initialValues object passed to `reduxForm` to initialize the form data.
+
 #### `invalid : boolean`
 
 > `true` if the form has validation errors. Opposite of `valid`.

src/__tests__/reduxForm.spec.js

@@ -86,6 +86,7 @@ const describeReduxForm = (name, structure, combineReducers, expect) => {
         'error',
         'form',
         'handleSubmit',
+        'initialValues',
         'initialize',
         'initialized',
         'invalid',
@@ -373,6 +374,7 @@ const describeReduxForm = (name, structure, combineReducers, expect) => {
         expect(props.pristine).toBe(true)
         expect(props.dirty).toBe(false)
         expect(props.initialized).toBe(false) // will be true on second render
+        expect(props.initialValues).toEqualMap(initialValues)
       }
       checkProps(formRender.calls[ 0 ].arguments[ 0 ])
 

src/reduxForm.js

@@ -358,6 +358,7 @@ const createReduxForm =
               handleSubmit: this.submit,
               initialize,
               initialized,
+              initialValues,
               invalid,
               pristine,
               reset,