Crash: Extends beyond bounds for empty array

[rbright55]

Bug Report

Reason:
*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM removeObjectsInRange:]: range {0, 1} extends beyond bounds for empty array'
Location:
- [SDLMutableDataQueue popBuffer], line 57

Reproduction Steps

N/A

Expected Behavior

Within the popBuffer function of the SDLMutableDataQueue.m file, a check should be added to see if the array is empty.

Observed Behavior

App crashes because the function is trying to remove an object from an empty array

Frequency

1/5

OS & Version Information

• Device: iPhone 7
• iOS Version: 13.2
• SDL iOS Version: 6.3.1
• Testing Against: SYNC 3, Ford Explorer

[theresalech]

Closed via #1435