Profile avatar preview and reset behave inconsistently after cancel/save cycles

Description
When changing a profile picture, the preview and saved avatar can fall out of sync. Uploading, cancelling, saving, and resetting multiple times can leave the old image cached, prevent re-uploading the same file from showing a preview, or keep the old avatar after saving a reset to initials.

Steps to Reproduce

1. Go to My Account → Profile.
2. Upload a new profile picture (preview shows) and click Cancel.
3. Upload the same picture again — preview may not appear.
4. Upload a picture, click Save.
5. Click the reset/“no photo” button (initials preview), then Save — sometimes the old photo remains. If you Cancel instead, the preview may stay cleared instead of restoring the previous image.
6. Repeat the upload/reset/cancel/save cycle a few times; behavior becomes inconsistent.

Expected Behavior

• Upload shows a preview immediately.
• Cancel restores the previously saved avatar and clears any new preview.
• Reset shows initials immediately; saving removes the old photo, cancelling restores the previous photo.
• Re-uploading the same file always shows a preview after a cancel or reset.

Actual Behavior

• Preview can disappear or fail to reappear when re-uploading the same file after cancelling.
• Resetting to initials may still leave the old photo after saving, or leave no avatar visible after cancelling.

https://github.com/user-attachments/assets/e2c7331f-b004-46d6-97cc-986a6815ab30

Start at the My Account → Profile entry point and reproduce the upload, cancel, save, and reset cycles described in the issue. Trace the avatar preview and saved-state handling, then verify that cancel restores the saved avatar, reset saves initials, and re-uploading the same file reliably shows a preview.