Caps key 'unexpected behaviour' in iOS

Text input from the internal keyboard of iPhone or iPad reverts to caps setting, however the caps key is set.

After the initial capital at the beginning of the sentence, expected behaviour is that input should revert to lower case – but it doesn’t. If I strike the caps key again to change it, I get one character lower case and then it reverts to caps.

This topic is a duplicate of Persistant Caps Lock on iPad.

Closing this one. Head over there for all further discussions.