if the wheel is locked, don't allow Ctrl+Letter to sort

stepmania/src/ScreenSelectMusic.cpp

@@ -358,6 +358,9 @@ void ScreenSelectMusic::Input( const InputEventPlus &input )
 	MakeUpper( &c, 1 );
 
 	if ( bHoldingCtrl && ( c >= 'A' ) && ( c <= 'Z' ) )
+	{
+		// Don't change sort order when the wheel is locked.
+		if( !m_MusicWheel.WheelIsLocked() )
 		{
 			SortOrder so = GAMESTATE->m_SortOrder;
 			if ( ( so != SORT_TITLE ) && ( so != SORT_ARTIST ) )
@@ -376,6 +379,7 @@ void ScreenSelectMusic::Input( const InputEventPlus &input )
 			AfterMusicChange();
 			return;
 		}
+	}
 
 	// debugging?
 	// I just like being able to see untransliterated titles occasionally.