Nested multifield breaks HTML of AEM dialog leaving open <div>
In AEM 6.0 through 6.2, when you configure a nested multifield in the Touch UI dialog (cq:dialog) of a component, the dialog is broken.
AEM 6.0, 6.1 or 6.2
This is a known bug that HTML of the multifield would be missing a closing when it is nested.
This would be fixed in a future version of AEM.