We are having the same problem with our Parcel Fabric. We are also in a local State Plane Coordinate system (Meters) and edit it as such. Nearly every edit session will push the Line feature extents Min X and Min Y to the maximum of the domain....it doesn't seem to affect the Max Y/X. The data is in a SQL Server 2014 geodatabase.
Oddly...this doesn't happen when the same data is in a PostGres database.
Also, editing/viewing performance slows tremendously once this happens.
Any help would be great.
Thanks!
Mike