- sigkeys-fingerpints can be empty

pungi-build.conf.j2

@@ -55,7 +55,13 @@ pkgset_koji_module_tag = "dist-c8-module-compose"
 pkgset_allow_reuse = False
 
 
-sigkeys = [{{ sigkeys_fingerprints | join('", "') }}]
+sigkeys = [
+    {% for sigkey in  %}
+    {% if sigkey %}
+    "{{ sigkey }}",
+    {% endif %}
+    {% endfor %}
+]
 
 filter_system_release_packages = False