Attachment with event.view_hierarchy type isn't shown in the Issues page

[marandaneto]

Environment

Sent by Flutter/RN on Android.

Steps to Reproduce

1. Capture an envelope with an event
2. Capture an envelope with an attachment of the event.view_hierarchy type.

Obs: If the attachment and the event are sent within the very same envelope, it works.
I know that minidumps requires to be within the very same envelope of the event, but it's not the case for event.view_hierarchy.

envelope.txt

The event id dfbaa509977c4626af8266753e256908 set in the envelope header already exists in Sentry.

Expected Result

Attachment is shown in the Issues page

Actual Result

Attachment isn't show in the Issues page

[markushi]

Can we get some attention on this issue? This is blocking our Dart, Cocoa and Java (Android) SDK from shipping this feature. cc @kahest

[olksdr]

Opened getsentry/sentry#42805 to fix this and also added integration test to relay in #1728 to check that we actually can send the individual attachments to Sentry.