Update packit_service/models.py

Co-authored-by: Nikola Forró <nforro@redhat.com>

Author: majamassarini

packit_service/models.py

@@ -2108,10 +2108,10 @@ def create(
                     # Use package_name parameter if provided (from handler context),
                     # otherwise fall back
                     clone_package_name = (
-                        package_name if package_name is not None else run_model.package_name
+                        package_name
+                        or run_model.package_name
+                        or db_run_model.package_name
                     )
-                    if clone_package_name is None:
-                        clone_package_name = db_run_model.package_name
                     logger.debug(
                         f"Atomic update failed for pipeline {run_model.id} "
                         f"(another thread won), "