fix: crash on iOS18 by reversing enumeration

[James-chok]

There is a crash on iOS18 because of NSRangeException NSMutableRLEArray replaceObjectsInRange:withObject:length:: Out of bounds, fixing by reversing enumeration.

e.g.:
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[zhgchgli0718]

Thank you for providing the solution. However, this solution only ensures that the system won’t crash, and some behaviors are still incorrect.

I have opened a new PR with a complete fix. Once again, thank you for the inspiration. #78