I have a component which uses the input helper like this:
{{input value=model.value focus-in='focusInAction'}}

Since the upgrade to Ember 2.4.x these inputs show a strange behaviour. The cursor is misplaced on a fixed spot (left side and shifted down) in the text input or in some cases it is not visible. Beside this the input and all actions work as expected. The error does only appear on inputs with the focus-in action handled and just in Firefox.

Till now I could narrow this down to the new jquery version (2.2.1) which comes with the latest Ember version. If I use jquery 2.1.4 with Ember 2.4.x everything works as expected.

Example with missing cursor in FF:
https://ember-twiddle.com/50fdee3aee87c09c7fd8

Any ideas about that?