bug: Multiple subchannels in defferent places won't update

[GuiLeme]

Describe the bug
When a sigle data-channel and subchannel receives a lot of subscriptions, the manager doesn't seem to be updating for the new ones, that is the first interaction with the data-channel is missing;

The error is more on CORE side, but is closely related to the SDK.

To Reproduce
Steps to reproduce the behavior:

1. Inside a plugin, create a data-channel (likely in the main file of the plugin);
2. Use the same data-channel (including subchannel) in another 2 files at least;
3. Send an update via pushEntry function;
4. Reload page and see that the data doesn't come for the data-channel subscriptions after the first one;

Expected behavior
Every single data-channel subscription should receive data on subscription and on data update

Actual behavior
Data-channel is only updating subscriptions on data update (for more than 1 subscription);

BBB version, plugin in which The bug happened and SDK version:
SDK version 0.0.94 - This was first spotted in plugin-typed-captions (PR: bigbluebutton/plugin-typed-captions#23)