Administration console - editing javascript task name doesn't work correctly

Editing javascript task name, doesn't change the name of the script. If we try to edit name the script can no longer be executed.
Console error message when trying to run edited script:
Error Some unexpected problem happened when launching the task: DGISPN0118: Failed to invoke operation: java.lang.NullPointerException

Steps to reproduce:
upload javascript

• click on cache container -> Configuration -> Tasks -> Create new script
• fill in the mandatory parameter (e.g. Task name: newTask, Language: javascript, Execution mode: local, script body: cache.put('key','value'))
• click create script task button

edit script

• click on cache container -> Configuration -> Tasks -> Edit
• change the name of the script
• click update script

Result:
name remains the same and script can no longer be executed

Note that other properties such as mode or script body can be edited in this way.