Cannot reload the same identity file in case of error

Adding exception handling around the `openziti.load` method to catch a load failure with the intention of correcting the error and attempting to load again does not work and just hangs in the second call to `load`.
Sample code:
``` python
try:
  openziti.load('myIdentity.json')
except:
  # Fix the error with the file and try again
  openziti.load('myIdentity.json') # Hangs here
```
