Fix default values for key/certificate source parsers

diff --git a/mkosi/config.py b/mkosi/config.py
index 66016b8df857025c3218a17019034c251197f6a1..4f6b1270b5dc6a2af26c9beb1205b8c13ef1e950 100644 (file)
--- a/mkosi/config.py
+++ b/mkosi/config.py
@@ -1515,7 +1515,7 @@ class KeySource:
 
 def config_parse_key_source(value: Optional[str], old: Optional[KeySource]) -> Optional[KeySource]:
     if not value:
-        return old
+        return KeySource(type=KeySourceType.file)
 
     typ, _, source = value.partition(":")
     try:
@@ -1545,7 +1545,7 @@ def config_parse_certificate_source(
     old: Optional[CertificateSource],
 ) -> Optional[CertificateSource]:
     if not value:
-        return old
+        return CertificateSource(type=CertificateSourceType.file)
 
     typ, _, source = value.partition(":")
     try: