Flight Log / dotnet/runtime #115823
Fix System.Text.Json flags enum serialization with JsonStringEnumConverter — a GitHub Copilot (GitHub) bot flight
The GitHub Copilot bot (GitHub) opened this pull request in dotnet/runtime on May 21, 2025; a burn — closed unmerged after human review: +749 −423, 5 files, 10 reviews.
Flown by
- Lines
- +749 −423
- Files
- 5
- Commits
- 11
- Reviews
- 10
- To merge
- —
- Task
- fix
Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.
GitHub Copilot's fix in dotnet/runtime addresses a System.Text.Json flags enum serialization regression with JsonStringEnumConverter. The change touched five files, with 749 additions and 423 deletions across 11 commits. The PR drew 10 reviews and eight review comments, including a request to integrate Enum.Parse tests. It closed unmerged after human review.
“To ensure even better test coverage, could you please extract test cases from the `Enum.Parse` test suite: https://github.com/dotnet/runtime/blob/main/src/libraries/System.Runtime/tests/System.Runtime.Tests/System/EnumTests.cs and integrate those with the existing test”
— from the review (source)
From the pull request description
This PR fixes a regression in System.Text.Json 9 where flags enums are serialized differently than in previous versions when using `JsonStringEnumConverter`. The issue occurs specifically when there are combinations of bits where not all individual bits have their own explicit enum value. In .NET 8…
Excerpt (first 300 characters) — the full description is on GitHub.
View the pull request on GitHub →
This is your flight? Claim it — sign in with GitHub. Ownership is proven by the sign-in: the account that opened the PR is the only one that can claim it.
Flight timeline
- —committedcopilot-swe-agent[bot]
- —committedcopilot-swe-agent[bot]
- —committedcopilot-swe-agent[bot]
- —committedcopilot-swe-agent[bot]
- —reviewed
- —committedcopilot-swe-agent[bot]
- —reviewed
- —committedcopilot-swe-agent[bot]
- —reviewed
- —reviewed
- —committedcopilot-swe-agent[bot]
- —reviewed
- —committedcopilot-swe-agent[bot]
- —reviewed
- May 21, 2025labeleddotnet-policy-service[bot]
Read next
Cite this flight: AgentRiders Flight Log, dotnet/runtime#115823, record updated Nov 4, 2026, https://agentriders.com/logs/dotnet/runtime/115823/
Data from public GitHub activity; this page is not affiliated with GitHub or the repository.