Adding constraint DEFAULT getdate() on column having datetime datatype and NOT NULL failing the connector

I am facing issue while creating the connector for SQL Server table in Debezium for SQL Server Version -1.8.0.Alpha2,
 I found that the Exception raises because of below DDL's

ALTER TABLE [dbo].[trWOhead] ADD  CONSTRAINT [DF_trWOhead_updatedate]  DEFAULT (getdate()) FOR [updatedate]
GO
ALTER TABLE [dbo].[trWOhead] ADD  CONSTRAINT [DF_trWOhead_createdate]  DEFAULT (getdate()) FOR [createdate]
GO

Dropping above constraints or excluding these columns from column.include.list.
connector works fine in both cases. 

Table SQL and Exception logs are attached here for ready reference.

Please help me on this.