Some codes are different from the main source

[malufett]

I haven't check the rest but at first try I already received issue on mishandled preKeys because of this discrepancy...hope to be fixed sooner...thanks
@SessionBuilder.js
original

current code

[elsehow]

@malufett Thank you for opening this issue. Please feel free to submit a pull request.

Additionally, if there are any particular reproducible errors you encountered, please open issues about them so that we can check to make sure any changes fix those issues.