Type is removed from parameter if not in type hints when converting reST docstring

[dadadel]

If a type is provided in a reST dosctring for a parameter, it will be removed in the output docstring if not present in the type hint:

def func(param1):
    """Description

    :param param1:
    :type param1: str
    :returns: the return value

    """
    pass

Will produce:

# Patch generated by Pyment v0.4.0dev

--- a/t.py
+++ b/t.py
@@ -1,8 +1,7 @@
 def func(param1):
     """Description

-    :param param1:
-    :type param1: str
+    :param param1: 
     :returns: the return value

     """

However it works well when input docstring is google style:

def func(param1):
    """Description

    Args:
      param1(str):

    Returns:
      the return value

    """
    pass

Produces:

# Patch generated by Pyment v0.4.0dev

--- a/t2.py
+++ b/t2.py
@@ -1,11 +1,9 @@
 def func(param1):
     """Description

-    Args:
-      param1(str):
-
-    Returns:
-      the return value
+    :param param1: 
+    :type param1: str
+    :returns: the return value

     """
     pass