Fix a couple of issues with the patch reading overrides from pagure_poc.json

The patch contained a full-bloom syntax error.
It also did not record the POC for every product but Fedora EPEL.

Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr>

distgit_bugzilla_sync/script.py

@@ -863,8 +863,11 @@ class DistgitBugzillaSync:
                     products_retired[product] = False
 
                 # Check if the Bugzilla ticket assignee has been manually overridden
-                if product = "Fedora EPEL":
+                if product == "Fedora EPEL":
                     products_poc[product] = project["epelpoc"]
+                else:
+                    products_poc[product] = owner
+
             project['products_poc'] = products_poc
             project["products_retired"] = products_retired