Revert "Revert "Debugging GH #17671.""

This reverts commit 83aa75213860c4aa879853b1bac9e58a116214ab.

That commit was itself a reversion, hoping that various changes had
fixed a bug.  But it has cropped up, so the bug isn't fixed, and so this
is the reversion of the reversion.

diff --git a/lib/charnames.t b/lib/charnames.t
index 2e7f253..01e1fd7 100644 (file)
--- a/lib/charnames.t
+++ b/lib/charnames.t
@@ -157,6 +157,10 @@ sub test_vianame ($$$) {
 
     $wildcard_count++;
 
+    # XXX temporary to see if the failure we are occasionally seeing is
+    # confined to this code point.  GH #17671
+    next if $i == 0;
+
     # Because wildcard name matching is so real-time intensive, do it less
     # frequently than the others
     if ($wildcard_count >= 10) {