Merged in dheeyi/processmaker/PM-2790 (pull request #2290)

PM-2790 0017387: Derivacion en paralelo, una de los hilos llega a la bandeja como leido

workflow/engine/classes/class.case.php

@@ -1078,6 +1078,7 @@ class Cases
               $Fields['DEL_INDEX'] = 1;
             }
             $inbox = new ListInbox();
+            unset($Fields['DEL_INIT_DATE']);
             $inbox->update(array_merge($Fields, $arrayNewCaseTitleAndDescription));
             /*----------------------------------********---------------------------------*/
 

workflow/engine/classes/class.derivation.php

@@ -805,7 +805,6 @@ class Derivation
             unset( $aSP );
         } //end foreach
 
-
         /* Start Block : UPDATES APPLICATION */
 
         //Set THE APP_STATUS