title: ReactSelect - Allow for Case Sensitive Creatable Options
body: <p>I am using React-Select, in my ReactJS Application. I have created a Creatable Select Type, which allows users to Create options on the fly. But I have a problem.</p>
  
  <p>THE PROBLEM:
  My options are used in a case-sensitive manner. Whihc means, <code>user</code> and <code>USER</code> have different applications.</p>
  
  <p>Currently when I type for example <code>user</code>, I cannot type <code>USER</code> as well.</p>
  
  <p>I am going through the documentation, but cannot find anything that allows me, to use both the Dropdown Select, along with creating multiple <code>CaseSensitive</code> options.</p>
  
  <p>Here is my Select:</p>
  
  <pre><code>                    &lt;CustomSelect
                        id={id}
                        type={Type.CREATABLE_SELECT}
                        options={convertRegexDataToSelect(value)}
                        onChangeCallback={values =&gt; {
                          setFieldValue(name, convertSelectToRegexData(values));
                          setFieldTouched(name, true);
                        }}
                      /&gt;
  </code></pre>
  
  <p>Any ideas on how to achieve this functionality?</p>
  
  <p>A working example in a CodeSandbox: <a href="https://codesandbox.io/s/priceless-brown-zk7e1" rel="nofollow noreferrer">https://codesandbox.io/s/priceless-brown-zk7e1</a></p>