The Split tool assigns Object IDs randomly rather than taking into consideration the line direction.
Last Published: February 6, 2015ArcGIS for Desktop
Bug ID Number
January 29, 2015
February 14, 2023
ArcGIS for Desktop
Operating System Version
Will Not Be Addressed
The development team has considered the issue or request and concluded it will not be addressed. The issue's Additional Information section may contain further explanation.
To understand the logic for split, refer to the documentation page: http://help.arcgis.com/en/sdk/10.0/arcobjects_net/componenthelp/index.html#/SplitWithUpdate_Method/0025000002zt000000/.
The larger feature gets the original OID, and the smaller object gets the new OID.