Index: includes/replies/template.php
===================================================================
--- includes/replies/template.php	(revision 5924)
+++ includes/replies/template.php	(working copy)
@@ -2667,10 +2667,11 @@
 			// Add reply_to to the post object so we can walk it later
 			$post->reply_to = $_reply_to;
 		}
+			$show_none = ( 0 !== $reply_id ) ? _x('None', 'Default reply to dropdown text', 'bbpress') : sprintf( esc_attr__( '%1$s - %2$s', 'bbpress' ), $topic_id, bbp_get_topic_title( $topic_id ) );
 
 		// Get the dropdown and return it
 		$retval = bbp_get_dropdown( array(
-			'show_none'    => sprintf( esc_attr__( '%1$s - %2$s', 'bbpress' ), $topic_id, bbp_get_topic_title( $topic_id ) ),
+			'show_none'    => $show_none,
 			'select_id'    => 'bbp_reply_to',
 			'select_class' => 'bbp_dropdown',
 			'exclude'      => $reply_id,