Trigger should not explode when there is a massive update with zero lines

[openlowcode]

While generally massive treatment of methods work with zero lines array being given an input, an error was encountered for an object with trigger on update.

 unexpected error during execution, exception details below. Server Shutdown
* java.lang.NullPointerException - null
org.openlowcode.server.runtime.OLcServer.addTriggerToList(OLcServer.java:709)
org.openlowcode.server.data.properties.Trigger.processTrigger(Trigger.java:223)
org.openlowcode.server.data.properties.Trigger.postprocUniqueidentifiedUpdate(Trigger.java:68)
org.openlowcode.server.data.properties.Trigger.postprocUniqueidentifiedUpdate(Trigger.java:168)
com.airbus.h.budgetmanager.data.Activity.update(Activity.java:687)
com.airbus.h.budgetmanager.data.migrator.ActivityGenerateVersionMasterIdMigrator.executeNormalMigration(ActivityGenerateVersionMasterIdMigrator.java:43)