[PATCH] Add missing UPREF.

[Jan Alexander Steffens (heftig)]

Fixes: d2e694ad66a379fa128137d19c10b77b942972f2
Fixes: https://bugs.gentoo.org/868567
Fixes: https://lists.gnu.org/archive/html/bug-gawk/2022-09/msg00006.html
---
 interpret.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/interpret.h b/interpret.h
index 57d060e63f37..268655b2231f 100644
--- a/interpret.h
+++ b/interpret.h
@@ -238,6 +238,7 @@ uninitialized_scalar:
                                                _("reference to uninitialized 
argument `%s'") :
                                                _("reference to uninitialized 
variable `%s'"),
                                                                
save_symbol->vname);
+                               UPREF(m);
                                PUSH(m);
                                break;