Text column cannot be mapped to nullable enum

I have a table with a text column that allows nulls. This text column holds the string representation of an enum:

public enum Status
    {
        NotConnected,
        Connected
    }

When making updates or inserts into this table, it works just fine because I can use the ?. null-conditional operator which seems to make Dapper happy. However, when doing reads I get an error:

System.Data.DataException: Error parsing column 3 (status= - String)
 ---> System.ArgumentException: Must specify valid information for parsing in the string. (Parameter 'value')
   at System.Enum.TryParse(Type enumType, String value, Boolean ignoreCase, Boolean throwOnFailure, Object& result)
   at System.Enum.Parse(Type enumType, String value, Boolean ignoreCase)
   at Deserialize2098d38f-668f-47dd-8226-fb67d62b44fc(IDataReader )
   --- End of inner exception stack trace ---
   at Dapper.SqlMapper.ThrowDataException(Exception ex, Int32 index, IDataReader reader, Object value) in /_/Dapper/SqlMapper.cs:line 3665
   at Deserialize2098d38f-668f-47dd-8226-fb67d62b44fc(IDataReader )
   at Dapper.SqlMapper.QueryAsync[T](IDbConnection cnn, Type effectiveType, CommandDefinition command)

presumably because dapper does not know what to do if the column is null. Is there a way to get Dapper to do the right thing, maybe through custom type handlers or mappers?

Start at SqlMapper.cs line 3665 and the enum parsing path shown in the stack trace; compare how nullable database values are handled during reads with the custom type handlers or mappers suggested in the issue. Reproduce the nullable text-column read and verify that a null value maps without the DataException while non-null enum strings still work.