From 5e3460ae627e5a07f6c17c2d01ab9850ee617ee3 Mon Sep 17 00:00:00 2001
From: Ales Bregar <ales.bregar@eventim.de>
Date: Mon, 11 Aug 2025 15:08:11 +0200
Subject: [PATCH] system test t12_api sends empty keyRef string, making gpg
 fail

---
 pgp/gnupg.go | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/pgp/gnupg.go b/pgp/gnupg.go
index dbff8ddc..bab2db21 100644
--- a/pgp/gnupg.go
+++ b/pgp/gnupg.go
@@ -35,11 +35,14 @@ func (g *GpgSigner) SetBatch(batch bool) {
 
 // SetKey sets key ID to use when signing files
 func (g *GpgSigner) SetKey(keyRef string) {
-	if g.keyRefs == nil {
-		g.keyRefs = []string{strings.TrimSpace(keyRef)}
-	} else {
-		g.keyRefs = append(g.keyRefs, strings.TrimSpace(keyRef))
-	}
+    keyRef = strings.TrimSpace(keyRef)
+    if keyRef != "" {
+        if g.keyRefs == nil {
+            g.keyRefs = []string{keyRef}
+        } else {
+            g.keyRefs = append(g.keyRefs, keyRef)
+        }
+    }
 }
 
 // SetKeyRing allows to set custom keyring and secretkeyring