Fixed StartUpdatesNativeAsync for indicate

[AskBojesen]

To fix #847

[janusw]

This is sufficiently simple and well-contained for me to still consider it for 3.1.0, provided it actually solves the problem. @CodeMusher Does it fix #847 for you?

[CodeMusher]

@janusw, I haven't got the possibility to verify it today but it looks almost identical to the solution I provided when opening the issue so I guess it must.

[janusw]

@janusw, I haven't got the possibility to verify it today

No problem. When will you be able to verify it?

but it looks almost identical to the solution I provided when opening the issue

Yes, it's very close, but not identical.

so I guess it must.

Sorry, but guessing is not good enough here. Apparently @AskBojesen was not able to reproduce the issue and test the fix, and I'm not going to accept an untested PR at this stage (i.e. directly before a stable release).

[CodeMusher]

I'll try to test it tomorrow

[AskBojesen]

BTW: I have tested using my "normal" device with Notity in char descriptors - and that still works as expected.

[CodeMusher]

Now I have tested with two different devices. One with characteristics with only INDICATE and one with a mixed population of characteristics, some INDICATE and some NOTIFY.
It works as expected!

[janusw]

Since both of you have tested it and code-wise it looks very clean, this is ok with me. Thanks for fixing this so quickly, @AskBojesen!