Attribute "subscribeOnStart" not loaded

[SemtexA]

Hi,

when loading an experiment file to the Blockly editior some attributes seem to get lost. Im my case the "subscribeOnStart".

How to reproduce:

- Load attached file in the editor (note in line 15 it says subscribeOnStart="false")
- Click on generate (should produce identical output)
- The 2 files are different