enterKey breaks block-level widgets

[xmo]

If "enterKey" is enabled, hitting [Return] while in a simple block-level (div) widget will break the widget by creating a second "widget body" within the widget wrapper. This leads to odd formatting and an unexpected DOM.

See attached demo, the only plugins are enterKey and a custom widget plugin, put the cursor within the displayed word and hit the [Return] key. Instead of adding a line/paragraph break it will create a second widget within the container (with its own outline and everything).