to be fetched from the server before triggering OMEMOInitialized.
For some contacts, the IQ to fetch the device list never receives a
response. IQ stanzas take 20 seconds to timeout, which means that all
OMEMO operations are blocked for 20 seconds (because everything waits
for `OMEMOInitialized`).
Create a new API method `api.omemo.devicelists.get` and use that to
fetch and `await` for any devicelist. That way we lazily wait for
devicelists to be fetched from the server and can continue with other
OMEMO operations unrelated to users who's clients don't respond to
devicelist queries.
before parsing message stanza for encryption parameters.
Otherwise we might not know what our own device-id/sid is, and therefore
can't decrypt the incoming message.
Fixes#2733
This wrongly stored value wasn't inlcuded in the published the bundle
because the libsignal store was used, which had the right value for the public key.
Instead, this value was used locally by being passed to the libsignal
session builder to verify signed prekey.
