title: Git merge not merging all files
body: <p>I am having a real tough time using git.</p>
  
  <p>I have a branch <code>A</code> and a branch <code>B</code>. I want to merge branch <code>A</code> into branch <code>B</code>. I am currently on branch <code>B</code> and I used the following command:</p>
  
  <p><code>git merge A</code>.</p>
  
  <p>Now when I run <code>git status</code>, I see that I am ahead by two commits and when I look at the files that were altered during the <code>git merge</code> I noticed only two files being altered. However, there are at least a dozen files that I know was changed in branch <code>A</code> that didn't get picked up during the <code>git merge</code>.</p>
  
  <p>Why is <code>git merge</code> only merging those two files when there are clearly other files that need to get merged?</p>