updated for version 7.3.1285
Problem:    No tests for picking a window when selecting an entry in a
            location list.  Not picking the right window sometimes.
Solution:   Add test 96. Set usable_win appropriately. (Lech Lorens)
diff --git a/src/quickfix.c b/src/quickfix.c
index f789785..ebb0282 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -1635,7 +1635,10 @@
 	    FOR_ALL_WINDOWS(usable_win_ptr)
 		if (usable_win_ptr->w_llist == ll_ref
 			&& usable_win_ptr->w_buffer->b_p_bt[0] != 'q')
+		{
+		    usable_win = 1;
 		    break;
+		}
 	}
 
 	if (!usable_win)