Release 3.6.2 (hotfix)

[kasparsd]

Fixes the PHP error introduced in the #1218 release.

Release Changelog

• Fix: revert #1159 which caused a PHP error in the previous release.

Release Checklist

• This pull request is to the master branch.
• Release version follows semantic versioning. Does it include breaking changes?
• Update changelog in readme.txt.
• Bump version in stream.php.
• Bump Stable tag in readme.txt.
• Bump version in classes/class-plugin.php.
• Draft a release on GitHub.

Change [ ] to [x] to mark the items as done.