fix(permissions): drop the membership request when stepping back

[HarshMN2345]

Follow-up to #3177, which merged before this Greptile P1 was addressed. The finding was correct.

The path: on step two with a membership request in flight, hit Back. clearUser() cleared the selected user but left the request live, and Back triggers no new request — so latestRequest never advanced and nothing invalidated it. On rejection the requestId !== latestRequest guard still matched, so loadError was set while the picker sat on step one. Result: "Could not load users." over a user list that had loaded fine, with a Retry wired to the wrong request.

Fix: clearUser() now advances the request counter and clears the error and spinner it owns, so stepping back abandons the request rather than leaving it able to report. The rejection path also checks the selected user, matching the success path instead of relying on the counter alone — that asymmetry is what Greptile flagged.

check 0 errors, lint 0 errors, 265 unit tests, build clean.

[appwrite]

Console (appwrite/console)

Project ID: 688b7bf400350cbd60e9

Sites (1)

Site	Status	Logs	Preview	QR
console-stage 688b7cf6003b1842c9dc	Ready	View Logs	Preview URL

Tip

Each function runs in its own isolated container with custom environment variables

[greptile-apps]

Greptile Summary

This PR prevents an abandoned membership request from updating the permissions picker after the user returns to step one.

• Invalidates the active membership request when clearing the selected user.
• Clears membership loading and error state when stepping back.
• Applies the selected-user identity guard consistently to successful and failed membership responses.

Confidence Score: 5/5

The PR appears safe to merge, with no actionable regressions identified in the updated request lifecycle.

The request counter invalidates abandoned work, both response paths verify request and user identity, and the guarded cleanup prevents stale requests from clearing newer loading state.

Important Files Changed

Filename	Overview
src/lib/components/permissions/member.svelte	Correctly invalidates stale membership requests and prevents their success, failure, or cleanup paths from affecting the current picker state.

_{Reviews (1): Last reviewed commit: "fix(permissions): drop the membership re..." | Re-trigger Greptile}