Separate commits writing to same data intersection

I have a logic script that contains a number of commits and I need to modify the output for two of the commits.  In the past, the data was written to the same intersection but a different data type.  I now need to write the output from both commits using the same data type.  How can I write the data to the same intersection so it is aggregated and not have the data from the second commit overwrite the data sent from the first commit?

Regards