From b18f213b0f477a25dc63adc771bf84d7c83329b1 Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: Feb 07 2017 15:01:56 +0000
Subject: Only update the custom field if there is a value to give it


---

diff --git a/pagure/lib/__init__.py b/pagure/lib/__init__.py
index 7178e5d..96810f2 100644
--- a/pagure/lib/__init__.py
+++ b/pagure/lib/__init__.py
@@ -3568,12 +3568,14 @@ def set_custom_key_value(session, issue, key, value):
             current_field.value = value
             updated = True
     else:
-        current_field = model.IssueValues(
-            issue_uid=issue.uid,
-            key_id=key.id,
-            value=value,
-        )
-        if value:
+        if value is None or value == '':
+            delete = True
+        else:
+            current_field = model.IssueValues(
+                issue_uid=issue.uid,
+                key_id=key.id,
+                value=value,
+            )
             updated = True
 
     if not delete: