diff --git a/FAAPI/FAAPI.py b/FAAPI/FAAPI.py
index d35d6c8..a9dc377 100644
--- a/FAAPI/FAAPI.py
+++ b/FAAPI/FAAPI.py
@@ -597,7 +597,7 @@ class FAAPI:
 
         # Get the cached user, updating the API instance if necessary
         user = self._usercache[username]
-        if not user._api:
+        if user._api is not self:
             user._api = self
         return user
 
@@ -622,7 +622,7 @@ class FAAPI:
 
         # Get the cached submission, updating the API instance if necessary
         submission = self._submissioncache[id]
-        if not submission._api:
+        if submission._api is not self:
             submission._api = self
         return submission
 
diff --git a/setup.py b/setup.py
index 5d6bf29..b0a470d 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 
 setup(
     name='FAAPI',
-    version='0.6.2',
+    version='0.6.3',
     packages=find_packages(),
     url='https://tem.party/gitea/tom/FAAPI',
     license='WTFPL',