fix: reset discussions count

[daibhin]

Problem

Fixes https://posthog.slack.com/archives/C03PB072FMJ/p1715074316680939

Changes

Before	After
https://github.com/PostHog/posthog/assets/6685876/9b62f92a-ae52-45b6-94d5-580295a81348	https://github.com/PostHog/posthog/assets/6685876/4285de26-f76c-40b7-ac10-b6464ed1d380

Does this work well for both Cloud and self-hosted?

Yes

How did you test this code?

See videos

[github-actions[bot]]

Size Change: 0 B

Total Size: 1.05 MB

ℹ️ View Unchanged

Filename	Size
frontend/dist/toolbar.js	1.05 MB

_{compressed-size-action}

[posthog-bot]

📸 UI snapshots have been updated

1 snapshot changes in total. 0 added, 1 modified, 0 deleted:

• chromium: 0 added, 1 modified, 0 deleted (diff for shard 2)
• webkit: 0 added, 0 modified, 0 deleted

Triggered by this commit.

👉 Review this PR's diff of snapshots.

[posthog-bot]

📸 UI snapshots have been updated

1 snapshot changes in total. 0 added, 1 modified, 0 deleted:

• chromium: 0 added, 1 modified, 0 deleted (diff for shard 2)
• webkit: 0 added, 0 modified, 0 deleted

Triggered by this commit.

👉 Review this PR's diff of snapshots.

[posthog-bot]

This PR hasn't seen activity in a week! Should it be merged, closed, or further worked on? If you want to keep it open, post a comment or remove the stale label – otherwise this will be closed in another week.