title: Get subversion's revision number for specific tag
body: <p>I'm getting conflicting numbers when it comes to the revision number. Let's say I run the following two commands. The most recent tag is "XYZ."</p>
  
  <pre><code>svn log $REPO_URL/$PATH/tags/ --limit=1
  ------------------------------------------------------------------------
  r16557 | userx | 2014-12-11 00:27:05 -0400 (Thu, 11 Dec 2014) | 1 line
  
  svn log $REPO_URL/$PATH/tags/XYZ --limit=1
  ------------------------------------------------------------------------
  r16556 | userx | 2014-12-11 00:24:14 -0400 (Thu, 11 Dec 2014) | 1 line
  </code></pre>
  
  <p>My question is, which revision number do I care for? What I'm looking to do is to run the following command against it to see what changes were made since the last tag was created. I've tried using both numbers and they return the same result. I wasn't sure which one is the "right" one to use.</p>
  
  <pre><code>svn log -r&lt;REVISION NUMBER&gt;:HEAD $REPO_URL/$PATH/branches/$BRANCH_NAME
  </code></pre>