Array bug | rewrite failed, key does not exist

[t1k3]

Example 1:

app.php > 'locales' => ['en'],
$locales = ['en-GB'];
Config::write('app', ['locales' => $locales]);

Exception in Repository.php line 146:
Unable to rewrite key "locales.0" in config, rewrite failed

Example 2:

app.php > 'locales' => ['en'],
$locales = ['en', 'en-GB'];
Config::write('app', ['locales' => $locales]);

Exception in Repository.php line 137:
Unable to rewrite key "locales.1" in config, does it exist?

[marktopper]

Duplicate of #11