Exception creating new entity with two properties mapped to one column

[SiestaGuru]

I want to point two properties at a single column like this to be able to both access my field as an enum and with the raw underlying string value:

tc.Property(x => x.RawStatus)
		.HasColumnName("STATUS");
tc.Property(x => x.StatusEnum)
	  .HasColumnName("STATUS")
	  .HasConversion<String>(
		a => FromEnum(a),
		b => ToEnum(b));

This appears to be supported by EF Core since it accepts this configuration and seems to work acceptably for existing entity.

But, if I then create a new entity with this configuration and call db.SaveChanges() I receive the following error:

Microsoft.EntityFrameworkCore.DbUpdateException: An error occurred while updating the entries. See the inner exception for details. ---> Devart.Data.Oracle.OracleException: ORA-06550: line 4, column 188:
    PL/SQL: ORA-00957: duplicate column name
    ORA-06550: line 4, column 1:
    PL/SQL: SQL Statement ignored

Is this not fully supported after all? Am I missing something? Or is it a EF Core or Devart bug?

I'm using EF Core v5.0.7 and devart v9.14.1273 on a Oracle database

[AndriySvyryd]

I couldn't repro this with SQL Server, so I think it's an issue in the Devart provider.

[SiestaGuru]

I've submitted it as a bugreport to Devart, but they believe it's also an issue using SQL Server. See this thread with example code:
https://forums.devart.com/viewtopic.php?f=30&t=46864&sid=904326cf9c592c0ecb76d491c065416f