Fixed inline widget is not draggable if selection is on ZWS.

Author: scofalik

plugins/widget/plugin.js

@@ -2481,6 +2481,11 @@
 					// Block widgets are handled by Lineutils.
 					if ( widget.inline && target.type == CKEDITOR.NODE_ELEMENT && target.hasAttribute( 'data-cke-widget-drag-handler' ) ) {
 						mouseDownOnDragHandler = 1;
+
+						// #13284.
+						if ( widgetsRepo.focused != widget )
+							editor.getSelection().removeAllRanges();
+
 						return;
 					}