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**Related issue:** Resolves#42427
# 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`.
## 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**
* Pending MDM profile records are cleared when Apple or Windows MDM is
turned off, preventing stale profiles from reappearing if MDM is
re-enabled.
* Pending Windows profile records are removed when a device is
unenrolled, avoiding leftover pending installations.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Victor Lyuboslavsky
b6bacca415