This had fixed the issue.

And from these screenshots it looks like that fix had also made the TOC header do the right thing in iOS 10.3.

But now the TOC header text is incorrectly aligned iOS 10.3. Super strange as the TOC cells themselves are still correct.

Repro steps here.

Screenshot below is iOS 10.3 TOC on Hebrew article when device lang is English (just tap the lang button on Obama article and choose Hebrew) - everything is fine except the TOC table header alignment: