title: Regex for replacing everything after a keyword with colon up to any other keyword with colon
body: <p>I have the following type of strings:</p>
  <pre><code>This is a test: 1, two again,three test2: what is, this
  test: acid, kool-aid word: some more info
  Another test: face, 3, &amp; yes
  </code></pre>
  <p>What I'd like to do is remove <code>test:</code> and everything after until it hits another word that has a colon.</p>
  <p>The result set from above would look like:</p>
  <pre><code>This is a test2: what is, this
  word: some more info
  Another
  </code></pre>
  <p>Here's what I've attempted, but this fails when there is NO word with a colon (so example 3 fails)
  <code>test:.+?(?=\w+:)</code></p>