Fix so drag-n-drop of text (e.g. recipient addresses) on compose page actually works (#1490619)

CHANGELOG

@@ -6,6 +6,7 @@ CHANGELOG Roundcube Webmail
 - Fix handling of message/rfc822 attachments on replies and forwards (#1490607)
 - Fix PDF support detection in Firefox > 19 (#1490610)
 - Fix path traversal vulnerability in setting a skin (#1490620)
+- Fix so drag-n-drop of text (e.g. recipient addresses) on compose page actually works (#1490619)
 
 RELEASE 1.2-beta
 ----------------

program/js/app.js

@@ -8377,7 +8377,7 @@ function rcube_webmail()
   // html5 file-drop API
   this.document_drag_hover = function(e, over)
   {
-    e.preventDefault();
+    // don't e.preventDefault() here to not block text dragging on the page (#1490619)
     $(this.gui_objects.filedrop)[(over?'addClass':'removeClass')]('active');
   };