Description:
------------
When there is a URL that starts with "#" in an anchor tag, PHP 7.1.1 still adds the PHPSESSID parameter like this:

<p><a href="index.php?PHPSESSID=a17309afea8f2791078fc046cce5fa56">Click This Anchor Tag!</a></p>
<p><a href="#place/?PHPSESSID=a17309afea8f2791078fc046cce5fa56">Internal link</a></p>
<p>Our Session ID is: a17309afea8f2791078fc046cce5fa56</p>
<p>Our PHP Version is: 7.1.1</p>

Test script:
---------------
<?php
    ini_set('session.use_cookies', '0');
    ini_set('session.use_only_cookies',0);
    ini_set('session.use_trans_sid',1);
    session_start();
?>
<p><a href="index.php">Click This Anchor Tag!</a></p>
<p><a href="#place">Internal link</a></p>
<p>Our Session ID is: <?= session_id() ?></p>
<p>Our PHP Version is: <?= phpversion() ?></p>

Expected result:
----------------
<p><a href="index.php?PHPSESSID=aec2a7538bfe295d6a6c9ff70c42f8eb">Click This Anchor Tag!</a></p>
<p><a href="#place">Internal link</a></p>
<p>Our Session ID is: aec2a7538bfe295d6a6c9ff70c42f8eb</p>
<p>Our PHP Version is: 5.6.28</p>

This is the output from the script on 5.6.28.  Note that '#place" does not get the session applied.

Actual result:
--------------
<p><a href="index.php?PHPSESSID=a17309afea8f2791078fc046cce5fa56">Click This Anchor Tag!</a></p>
<p><a href="#place/?PHPSESSID=a17309afea8f2791078fc046cce5fa56">Internal link</a></p>
<p>Our Session ID is: a17309afea8f2791078fc046cce5fa56</p>
<p>Our PHP Version is: 7.1.1</p>

This is the output from 7.1.1 (sorry I don't have easy access to 7.1.7)