Handle possibility of fee_amount = ''

diff --git a/CRM/Contribute/BAO/Contribution.php b/CRM/Contribute/BAO/Contribution.php
index b7bbf5f323715235ec3f5d1d65d12254eb2e71e6..74694231bf3a13ae033c1ad2af7633ea7471734d 100644 (file)
--- a/CRM/Contribute/BAO/Contribution.php
+++ b/CRM/Contribute/BAO/Contribution.php
@@ -343,7 +343,7 @@ class CRM_Contribute_BAO_Contribution extends CRM_Contribute_DAO_Contribution {
    * @throws \CiviCRM_API3_Exception
    */
   public static function calculateMissingAmountParams(&$params, $contributionID) {
-    if (!$contributionID && !isset($params['fee_amount'])) {
+    if (!$contributionID && (!isset($params['fee_amount']) || $params['fee_amount'] === '')) {
       if (isset($params['total_amount']) && isset($params['net_amount'])) {
         $params['fee_amount'] = $params['total_amount'] - $params['net_amount'];
       }