[$250] Investigate: 💥 Crash 💥 `RCTMergeRecursive`

[melvin-bot]

Firebase has reported a new crash that we need to fix, here are all the details we found:

Fatal Exception: NSInvalidArgumentException

-[NSNull objectForKeyedSubscript:]: unrecognized selector sent to instance 0x1fbdcfa88

RNCAsyncStorage.m line 184 RCTMergeRecursive

Number of Crashes: 39

Device Information

• Platforms: iOS
• App Versions: 1.2.4.2
• Devices: Apple iPhone10,3 15.5.0

Stacktraces

iOS 1.2.4.2

__exceptionPreprocess
objc_exception_throw
+[NSObject(NSObject) _copyDescription]
___forwarding___
_CF_forwarding_prep_0
RCTMergeRecursive (RNCAsyncStorage.m:184)
-[RNCAsyncStorage multiMerge:callback:] (RNCAsyncStorage.m:791)
__invoking___
-[NSInvocation invoke]
-[NSInvocation invokeWithTarget:]
-[RCTModuleMethod invokeWithBridge:module:arguments:] (RCTModuleMethod.mm:587)
invokeInner (RCTNativeModule.mm:183)
___ZN8facebook5react15RCTNativeModule6invokeEjON5folly7dynamicEi_block_invoke (Optional.h:419)
_dispatch_call_block_and_release
_dispatch_client_callout
_dispatch_lane_serial_drain$VARIANT$armv81
_dispatch_lane_invoke$VARIANT$armv81
_dispatch_workloop_worker_thread
_pthread_wqthread
start_wqthread

---

Internal Firebase Info

💥 DO NOT EDIT THIS SECTION 💥

Crash IDs: e490ef959842c7abf0b7c659c09d28b5
Exception: -[NSNull objectForKeyedSubscript:]: unrecognized selector sent to instance 0x1fbdcfa88

[melvin-bot]

Triggered auto assignment to @jliexpensify (External), see https://stackoverflow.com/c/expensify/questions/8582 for more details.

[melvin-bot]

Triggered auto assignment to Contributor-plus team member for initial proposal review - @sobitneupane (External)

[melvin-bot]

Triggered auto assignment to @chiragsalian (External), see https://stackoverflow.com/c/expensify/questions/7972 for more details.

[sobitneupane]

Might be related to #10975 and #11125 issues.

[jliexpensify]

Internal - https://www.upwork.com/ab/applicants/1574169204085006336/job-details
External - https://www.upwork.com/jobs/~017f0c3c916255d116

Invited @sobitneupane