Using hashes for promises is safe, but it makes monitoring fully unreadable.

XXX: In theory it works, but in real deployments for some unknown reason there
     is a problem like:

Process http-query-COMMON-302-http---something-example-com.py:
Traceback (most recent call last):
  File "<SHARED>/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "<SOFTWARE>/eggs/slapos.core-1.14.3-py3.9.egg/slapos/grid/promise/__init__.py", line 179, in run
    promise_module = self._loadPromiseModule()
  File "<SOFTWARE>/eggs/slapos.core-1.14.3-py3.9.egg/slapos/grid/promise/__init__.py", line 215, in _loadPromiseModule
    promise_module = importlib.import_module(os.path.splitext(self.name)[0])
  File "<SHARED>/lib/python3.9/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1030, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1007, in _find_and_load
  File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 691, in _load_unlocked
KeyError: 'http-query-COMMON-302-http---something-example-com'