Comparing Column values before and after

[David_Mildenber]

I am trying to write a condition for a workflow. The workflow should only execute if any of these values are true.

OR(
[_THISROW_BEFORE].[Status] <> [_THISROW_AFTER].[Status],
[_THISROW_BEFORE].[Stipulations] <> [_THISROW_AFTER].[Stipulations],
[_THISROW_BEFORE].[Note to representative] <> [_THISROW_AFTER].[Note to representative]
)

However, it is executing the workflow when it encounters empty values for those columns, even if the previous values were empty. When Appsheet compares before and after values, why is a before empty cell considered different than an after empty cell?