I have a combobox in a form panel. If I focus and select something the label moves up. After leaving this field the label moves down and overrides the selection.
This appears only if the property 'listeners' is defined. Without 'listeners' combobox works fine

This behavior is only in Chrome and Firefox with 7.0.0 Classic Material

https://fiddle.sencha.com/#view/editor&fiddle/3248