Possible issue when updating messages.

[aaron-iz]

Issue Title: Possible issue when updating messages.

Description

• A day after creating two example tables (channels), I used the bundled CLI client to drop them. The tables were successfully dropped (channels were removed). However, %meta_quildedsql% was not updated accordingly, and the corresponding channel ids persisted regardless being deleted. Upon restarting the client, it failed to load the tables/channels since they were deleted, resulting in a 404 error and a crash.
• After trying to reproduce immediately, it worked OK, and meta was updated properly. I had a suspicion that there is a time period after creating a message, during which you can update the message. Once this period has passed, updates are no longer allowed, but it seems unlikely to be the case.

Steps to Reproduce

• Note: could not reproduce immediately.

1. Create an instance of the API.
2. Create a table.
3. Remove the table.
4. Restart the API.

Expected Behavior

The tables should not be loaded if deleted previously.
When client drops a table, the abstracted channel must be deleted, and the channel's guilded identifier should be removed from any message they appear on %meta_quildedsql%

Actual Behavior

Inconsistent.

Additional Information

Looking at the API could not find anything about it