Re: double free error in gawk

[arnold]

Hi All.

Turns out there was indeed a bug in gawk; the double free error was
a real one.

Here's the fix.  Thanks for the report.

Andy, thanks for the debugging patch.

Arnold
---------------------------------------------------
diff --git a/field.c b/field.c
index 0e84447a..4740356f 100644
--- a/field.c
+++ b/field.c
@@ -230,6 +230,7 @@ rebuild_record()
                        }
 
                        n->stptr = cops;
+                       n->flags &= ~(MPFN|MPZN);
                        unref(r);
                        fields_arr[i] = n;
                        assert((n->flags & WSTRCUR) == 0);