Investigate [NSConcreteHashTable removeItem:] crash

[itaybre]

Description

We have received a report about this crash caused from Sentry, looks similar to #6589 with the added dispatchAsyncOnMainThread.

Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: SEGV_NOOP
Crashed Thread: 0

Application Specific Information:
hash >
KERN_INVALID_ADDRESS.

0  objc_msgSend
1   -[NSConcreteHashTable removeItem:]
2   thunk for closure
3   __79-[_SentryDispatchQueueWrapperInternal dispatchAsyncOnMainQueueIfNotMainThread:]_block_invoke

We should investigate and find the cause

[linear]

COCOA-1283

[philipphofmann]

@itaybre do you maybe have details on how often this happens and on which SDK versions?

[itaybre]

@philipphofmann yes, SDK 9.2.0

For now only 1 user reported this, he saw this after updating from v8 to v9