[fix] cert: Re-add line removed accidentally

by merge conflict resolution

silkaj/cert.py

@@ -90,6 +90,7 @@ def pre_checks(client, issuer_pubkey, pubkey_to_certify):
 
     # Check if the certification can be renewed
     params = get_blockchain_parameters()
+    req = client(bma.wot.requirements, pubkey_to_certify)
     req = req["identities"][0]
     for cert in req["certifications"]:
         if cert["from"] == issuer_pubkey: