Can't open Tags tab on the issue details page if there are many events (~4m)

### Environment SaaS (https://sentry.io/) ### Version _No response_ ### Steps to Reproduce 1. Open the Issue details page for any issue which has a high number of events 2. Click on the Tags tab below the action buttons  3. It took a while, then it shows the error. From what I checked, it seems it's working for issues with less than 3.5m events, but it shows the error when the # of events is more than 4m in total. ### Expected Result Show the custom tags reported with each event. ### Actual Result Error page :)