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**Version Used**:
.NET Core 3.1 with Microsoft.EntityFrameworkCore 3.1.1, nullable reference types enabled.
**Steps to Reproduce**:
```C#
using System.Linq;
using Microsoft.EntityFrameworkCor…
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I have app witch configured as net472;netcoreapp3.1
I use Npgsql 4.*(try any vertions) for work with DB
INSERT\UPDATE worked fine, but when I try use bulk operation then on start app under net472 ha…
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### Model
```C#
public class RootEntity
{
public Int32 Id { get; set; }
public ChildEntity? Child { get; set; }
}
public class ChildEntity
{
public Int32 Id { get; set; }
…
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When creating the context model a null reference error is thrown with the entity setup below.
The issue was first detected in a .NET 5.0 project (see EF core versions in bottom of report) and repro…
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When running the repro code below in EF Core 5 RC1 (v5.0.0-rc.1.20451.13), it produces the next error message:
```
System.InvalidOperationException: The query contains a final projection 'a => a.A…
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Versions :
> Webapi : latest from master branch
> .Net Core : 2.1.1
> .Net EF Core : 2.1.1
>
NullReferenceException is thown when calling this OData request :
> http://localhost:5000/…
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### Describe the bug
I had the same problem described at issue #837, but in MySql running on Windows.
I just want to share that I worked around the problem changing the MySQL migrations for the Id…
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Support using System.Text.Json instead of Newtonsoft.Json
* move logic for Newtonsoft.Json into a separate assembly
* add support for a generic JsonNode or similar object to be serialized to a dat…
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My Entity `QualityDataPart` implements an interface `IQualityDataPart` which has a property `Type` (string).
In order to save storage this text is stored in a different Entity `QualityDataPartInfo `
…
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## Describe the bug
using a struct Microsoft.EntityFrameworkCore.DbContextId from Microsoft.EntityFrameworkCore (3.1.32 together with 3.1.14 )
This is the exception when running a test using MSTes…