Use proper user info in commits

lib/user.py

@@ -15,6 +15,19 @@ FAKE_ACCOUNTS = (
 
 
 class User:
+    def __init__(self, db, userid) -> None:
+        row = User.lookup(db, userid)
+        self.userid = userid
+        if row:
+            (_, _, self.email, self.realname) = row
+        else:
+            self.email = ""
+            self.realname = ""
+        if not self.email:
+            self.email = "null@suse.de"
+        if not self.realname:
+            self.realname = f"OBS User {userid}"
+
     def parse(self, xml, userid):
         self.userid = userid
         self.realname = xml.find("realname").text