Defective Russian Phonetic keyboard in iOS
I've noticed that the Russian Phonetic keyboard is defective in iOS.
Both Russian and Bulgarian use the Cyrillic alphabet but each language has a completely different standard keyboard layout. For example, on the second row of a standard keyboard, the Russian one starts with ФЫВА and the Bulgarian one starts with ЬЯАО. To make typing easier in Cyrillic for users of QWERTY keyboards, both languages also have phonetic keyboards where the layout of the Cyrillic letters closely resembles the same phonetic sounds on a QWERTY keyboard. Therefore the second row of these phonetic keyboards starts with АСДФ, corresponding to ASDF on the second row of a QWERTY keyboard.
Here's the problem - if I add the Bulgarian Phonetic keyboard to my iPhone, I get a phonetic keyboard where the second row starts with АСДФ, but if I add the Russian Phonetic keyboard, I see the standard ФЫВА Russian layout and not a phonetic one starting АСДФ. Unfortunately I cannot use a Bulgarian phonetic keyboard for typing in Russian because it is missing letters that don't exist in Bulgarian, for example Ы.
What is causing this? Is it a bug in iOS?
iPhone 5, iOS 6.1.4