Twenty Seventeen version check fails on dev source of core

[Rarst]

This kill switch at starе of functions.php fails on dev checkout of core, stable 4.7 tag:

<?php
/**
 * Twenty Seventeen only works in WordPress 4.7 or later.
 */
if ( version_compare( $GLOBALS['wp_version'], '4.7-alpha', '<' ) ) {

var_dump( $GLOBALS['wp_version'], version_compare( $GLOBALS['wp_version'], '4.7-alpha', '<' ) );
// string(7) "4.7-src" bool(true)

Which further ends up as fatal error at my dev install, probably due to use of theme switcher plugin and kill switch being insufficiently foolproof. :)

[danielbachhuber]

Previously https://core.trac.wordpress.org/ticket/38411#comment:9

[Rarst]

Duplicate of #38411.

Cheers, missed that one, closing as duplicate.