diff -r 6ac3667706be roundup/cgi/wsgi_handler.py
--- a/roundup/cgi/wsgi_handler.py	Tue Apr 26 17:22:33 2022 -0400
+++ b/roundup/cgi/wsgi_handler.py	Fri Apr 29 11:09:07 2022 +0200
@@ -84,7 +84,7 @@
                 tracker_home=home)
         else:
             self.translator = None
-        self.preload()
+        self.tracker = roundup.instance.open(self.home, not self.debug)
 
     def __call__(self, environ, start_response):
         """Initialize with `apache.Request` object"""
@@ -116,25 +116,14 @@
         else:
             form = BinaryFieldStorage(fp=environ['wsgi.input'], environ=environ)
 
-        with self.get_tracker() as tracker:
-            client = tracker.Client(tracker, request, environ, form,
-                                    self.translator)
-            try:
-                client.main()
-            except roundup.cgi.client.NotFound:
-                request.start_response([('Content-Type', 'text/html')], 404)
-                request.wfile.write(s2b('Not found: %s' % 
-                                        html_escape(client.path)))
+        client = self.tracker.Client(self.tracker, request, environ, form,
+                                self.translator)
+        try:
+            client.main()
+        except roundup.cgi.client.NotFound:
+            request.start_response([('Content-Type', 'text/html')], 404)
+            request.wfile.write(s2b('Not found: %s' %
+                                    html_escape(client.path)))
 
         # all body data has been written using wfile
         return []
-
-    def preload(self):
-        """ Trigger pre-loading of imports and templates """
-        with self.get_tracker():
-            pass
-
-    @contextmanager
-    def get_tracker(self):
-        # get a new instance for each request
-        yield roundup.instance.open(self.home, not self.debug)