Bamboo Script task impossible to persist escaped XML characters using inline script

When using the Script task to write an inline script using any one of the following escaped XML characters:

• &
• <
• >
• "
• '

After save, when you go back to the task to edit it, those escaped XML characters are automatically unescaped. It appears to be impossible to keep and persist escaped characters. This becomes a problem when attempting to write a simple XML file that has escaped characters within an attribute - which in itself is VALID XML. The result of doing so creates an INVALID XML file. See screenshots for details.