Fix: Persist missing object removal when uploading matching object

[Copilot]

When an object is uploaded that matches an entry in TblObjectMissing (by DatName and DatChecksum), the missing entry was removed from the change tracker but not persisted due to an early return path that skipped SaveChangesAsync().

Changes

• Added conditional SaveChangesAsync() call before early return in CreateDatAsync when a missing entry was removed
• Only triggers database round-trip when an entry was actually found and removed

if (db.DoesObjectExist(hdrs.S5.Name, hdrs.S5.Checksum, out var existingObject))
{
    if (missingEntry != null)
    {
        _ = await db.SaveChangesAsync();
    }
    return Results.Accepted(...);
}

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• av-build-tel-api-v1.avaloniaui.net
  • Triggering command: /usr/share/dotnet/dotnet dotnet exec --runtimeconfig /home/REDACTED/.nuget/packages/avalonia.buildservices/11.3.1/tools/netstandard2.0/runtimeconfig.json /home/REDACTED/.nuget/packages/avalonia.buildservices/11.3.1/tools/netstandard2.0/Avalonia.BuildServices.Collector.dll (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>If an object is uploaded to the server that is listed as missing, it gets resolved/marked as available</issue_title>
<issue_description>Objects founds in the TblObjectsMissing table are referred to as missing objects. If someone uploads an object to the /objects route that exists in /objects/missing, the entry from TblObjectsMissing should be removed</issue_description>

<agent_instructions>Objects founds in the TblObjectMissing table are referred to as missing objects. If someone uploads an object to the /objects route (handled by ObjectRouteHandler class) that exists in TblObjectsMissing (this would be an object with matching dat name and checksum to an entry in TblObjectsMissing) then the entry should be removed from TblObjectsMissing (as it is no longer missing - it was just uploaded!</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes If an object is uploaded to the server that is listed as missing, it gets resolved/marked as available #196

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.