ObjectValue's clone() misses self.get_text

[adamneumann]

Hey, I'm a recent new user of Geraldo (version 0.4.12-stable) and love it!

Recently I hit a bug when defining a report using ObjectValue.get_text. Strangely, during report generation the value for get_text is None. Some debugging shows ObjectValue.clone() is called by ReportGenerator.clone() at geraldo/generators/base.py:201, and clone does not copy the reference for get_text.

Our temporary fix for this is to subclass ObjectValue and extend clone:

class CloneObjectValue(ObjectValue):
'''Enhanced ObjectValue with more correct cloning'''

def __init__(self, *args, **kwargs):
    super(CloneObjectValue, self).__init__(*args, **kwargs)

def clone(self):
    new = super(CloneObjectValue, self).clone()
    new.get_text = self.get_text
    return new