Parsing error on chain created from Apiroom

[matteo-cristino]

Steps to reproduce

In Apiroom, when using the following contract inside a chain

Given nothing
When I set 'nameOfNewObject' to '100' as 'string'
Then print data

The following error is returned

 Zencode pattern not found (when): When I set 'nameOfNewObject' to 1.0 as 'string'

If I save the chain, then, from swagger, I can see that the above statement is present in my chain even if it was not in the original contract.

Expected behavior

Create a chain from contracts should not modify the contracts.

System configuration

All test were performed on apiroom.