[Bug-16559] Perspective Numeric Entry Field displays oldValue when I move across the component via keyboard tab key or if validation fails by entering exponential character 'e' and lose focus

[cmallonee]

The value is not None or null, it is an empty String. In Jython (not Python OR Java), an empty string is greater than 0.

Consider including a check for the empty string before committing changes.

if (value > 0) and (len(str(value)) > 0):
    # do something