[release/2.x] Cherry pick: Partition test fix (#4746) (#4749)

tests/partitions_test.py

@@ -330,8 +330,8 @@ def test_expired_certs(network, args):
         # Should now be able to make progress
         check_can_progress(backup_a)
 
-    # Restore connectivity with primary
-    network.wait_for_primary_unanimity(min_view=r.view + 1)
+    # Restore connectivity with primary, an election may or may not happen
+    network.wait_for_primary_unanimity(min_view=r.view)
 
     # Set valid node certs so that future clients can speak to these nodes
     set_certs(from_days_diff=-1, validity_period_days=7, nodes=(primary, backup_a))