InconsistentDataException when copying page with default values when using projects

Description

Steps to reproduce:

1) Add a string property to a StandardPage.

[Display(
GroupName = SystemTabNames.Content,
Order = 330)]
public virtual string TestString { get; set; }

2) Set a default value using the SetDefaultValues method.

public override void SetDefaultValues(ContentType contentType)
{
base.SetDefaultValues(contentType);
 
TestString = "ABC";
}

3) In CMS, edit the About us page and make sure the new property has no value.
4) Select a project or create one.
5) Try to copy and paste the About Us page.

Expected:
Copy is successful

Actual: Error message popup
"Failed to copy page 'About us' to 'Start'.:[Importing content 282_285] Exception: Tried to load long string with GUID 3598f010-0b4f-4849-b1f9-943584033013 but it was not found in the database"

Workaround: Edit stored procedure netContentListPaged and replace the value 2147483647 with 0 in the following code. Important, code appears in 2 places and both needs to be changed from:

COALESCE(LongStringLength, 2147483647)

to

COALESCE(LongStringLength, 0)

Alternative workaround if changing database is not an option: Disable delayed loading by setting stringDelayedLoadThreshold="0" in web.config.