[Bug report] extendedSpellCheckConfiguration doesn't work if specialTextSpanBuilder is enabled

[ihijazi]

Version

16.0.2

Platforms

Android, iOS

Device Model

iPhone 12 Pro and other devices as well

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• iOS 17.6.1 21G93
    • iPhone 16 Pro (mobile)            • 1AE47BAB-B456-439B-86B4-87BDAD1D914C • ios            • com.apple.CoreSimulator.SimRuntime.iOS-18-2 (simulator)
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• No issues found!

How to reproduce?

Simply enable specialTextSpanBuilder.

Spell check won't work, even when configured. e.g:
extendedSpellCheckConfiguration: const ExtendedSpellCheckConfiguration(
misspelledTextStyle: TextStyle(
decoration: TextDecoration.underline,
decorationColor: Colors.red,
decorationStyle: TextDecorationStyle.wavy,
),

Tested in the example/demo app, same results.

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Example code (optional)

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