From 26c88befdab5de2d09a9f401edfc7a0b614e689a Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Tue, 5 Apr 2022 23:30:06 +0200
Subject: [PATCH] Make dummy definition in supportsField() const

---
 fieldbasedtag.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fieldbasedtag.h b/fieldbasedtag.h
index dd75b6d..b18ad09 100644
--- a/fieldbasedtag.h
+++ b/fieldbasedtag.h
@@ -350,7 +350,7 @@ template <class ImplementationType> inline KnownField FieldMapBasedTag<Implement
 
 template <class ImplementationType> inline bool FieldMapBasedTag<ImplementationType>::supportsField(KnownField field) const
 {
-    static IdentifierType def;
+    static const auto def = IdentifierType();
     return fieldId(field) != def;
 }