Zip and master not the same

If I am correct. They aren’t in sync although when viewing these files they are.
http://plugins.svn.ww.wp.xz.cn/wp-pagenavi/trunk/core.php
https://github.com/lesterchan/wp-pagenavi/blob/master/core.php

But when I download
http://downloads.wp.xz.cn/plugin/wp-pagenavi.2.83.zip
Which is downloaded with wp-cli by using the wp plugin install wp-pagenavi command I get a different verions…

Example:

$out .= $instance->get_single( 1, $first_text, array(
-                                       'class' => 'first'
-                               ), '%TOTAL_PAGES%' );
+                               $out .= $instance->get_single( 1, 'first', $first_text, '%TOTAL_PAGES%' );

http://ww.wp.xz.cn/extend/plugins/wp-pagenavi/