cloning with --recursive option resulting older than the newest version of models submodule

I have cloned pysunspec with command:
"$ git clone --recursive https://github.com/sunspec/pysunspec.git"

But i don't know why i have older version of submodule (models), in newest version brand:master manifest.py have:
```
...except Exception as e:
```
older one which was cloned with --recursive  have:
```
...except Exception, e:
```