The EditableText parameters selectionControls, dragStartBehavior, onSelectionHandleTapped, contextMenuBuilder, and magnifierConfiguration are passed on to the TextSelectionOverlay but the overlay is not updated when the widgets' configuration changes so those values remain stale.

For example, if you set a contextMenuBuilder on a TextField, then change the builder, the old builder will continue to be used until the selection gets reset (which for some reason seems to happen when you unfocus then refocus the field).