misc: create a new publisher object for running afterjobs (#18351)

wcs/middleware.py

@@ -14,6 +14,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
+import copy
 import json
 import thread
 import threading
@@ -112,9 +113,11 @@ class AfterJobsMiddleware(object):
             http_response = HTTPResponse()
             http_response.after_jobs = response.after_jobs
             if self.ASYNC:
+                publisher = copy.copy(get_publisher())
+                publisher.pgconn = None
                 thread.start_new_thread(
                         http_response.process_after_jobs,
-                        (get_publisher(),))
+                        (publisher,))
             else:
                 http_response.process_after_jobs()
         return response