I was going through a simple piece of code in reduxForm. What is pristine and submitting? What is the purpose of these?
pristine means that no fields in the form have been modified yet. It is documented in "props" section in Redux Form documentation.
There is also a similar terminology in Angular. You can find some details here or here.
submitting, as the name suggests, means that the form is in process of submitting (see: documentation).
Their typical usage is to disable the "submit" button in case when one of them is true.
Here is an example in Redux Form documentation which you might find helpful: https://redux-form.com/7.4.2/examples/initializefromstate/