<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#44071
Verified fix in loadtest.
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [x] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
## Testing
- [x] Added/updated automated tests
- [x] QA'd all new/changed functionality manually
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Bug Fixes**
* Fixed a race condition that could cause hosts to silently revert to a
previous team after an admin team transfer.
* Improved reliability of team-transfer handling to prevent unexpected
reversion during certificate/template transfers and device/profile
operations.
* **Tests**
* Added regression tests to ensure team assignments persist correctly
across host refreshes and related workflows.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
