Add a to field on follows if it is missing

follow.py

@@ -363,6 +363,8 @@ def receiveFollowRequest(session,baseDir: str,httpPrefix: str, \
         if debug:
             print('DEBUG: follow request does not contain a nickname')
         return False
+    if not messageJson.get('to'):
+        messageJson['to']=messageJson['object']
     handle=nickname.lower()+'@'+domain.lower()
     if '/users/' not in messageJson['object']:
         if debug:

inbox.py

@@ -445,7 +445,9 @@ def receiveUndoFollow(session,baseDir: str,httpPrefix: str, \
         if debug:
             print('DEBUG: actors do not match')
         return False
-        
+    if not messageJson['object'].get('to'):
+        messageJson['object']['to']=messageJson['object']['object']
+
     nicknameFollower=getNicknameFromActor(messageJson['object']['actor'])
     domainFollower,portFollower=getDomainFromActor(messageJson['object']['actor'])
     domainFollowerFull=domainFollower