I've just submitted v4.3.2 of EO to the Zen Cart plugins for review, containing changes associated with the following GitHub issues:

#66: Load EO functions only for EO's use.
#68: Log-file formatting updates.
#69: Attributes "lost" from ordered products when an order is updated.

See https://github.com/lat9/edit_orders for details. I'll post back here when it's available for download from the ZC Plugins.