title: Why is webpack --watch not updating when specific files are updated
body: <p>I have a decent sized webpack application that's heavily organized into particular segments.  Everything works great with both pure javascript and jsx files, as anytime I update anything it incrementally rebuilds the bundle.</p>
  
  <p>I have now added a new folder in the same root as all my others, and created a new javascript file in it.  Webpack knows too look for it because it is including the code in the bundle, and anytime it sees that one of the other files is changed it correctly rebuilds all changes, including in my new javascript file.</p>
  
  <p>However, for some reason whenever I save a change to this one javascript file, webpack does not detect that it needs to reload the changes from it.  Therefore, if the only changes I make are in this one javascript file a new bundle won't be created and I have to <kbd>ctrl</kbd>+<kbd>c</kbd> and re-run webpack.</p>
  
  <p>I've tried renaming the folder, renaming the javascript file, and several other steps that did nothing to help the situation.</p>
  
  <p>Can anyone give any insight into what may be going on, or is there any way I can get more information about what webpack is seeing or not seeing?</p>