Search users in channel not work correct

Description:

If there are many users in the channel (> 100) then the search does not work correctly. If the user is not present in the list of loaded users ("show more" button ), then he is not displayed in the search results.

Steps to reproduce:

1. Go to big channel and open Members list
2. Load a lot of users (1 or more click to "Show more" button) and notice some user name.
3. Close the member list
4. Open the member list again
5. Type the noticed user name in search field

Expected behavior:

The user is displayed in the search result.

Actual behavior:

but user is there (after using show more button)

Server Setup Information:

• Version of Rocket.Chat Server: 1.0.3
• Operating System: Ubuntu 18.04
• Deployment Method: snap
• Number of Running Instances: 1
• DB Replicaset Oplog: 1
• NodeJS Version: v8.11.3
• MongoDB Version: 3.4.20

Additional context

Relevant logs:

The issue names no files or tests. First reproduce the member-list search in a channel with more than 100 users, then trace the client-side member list and search behavior; it is done when searching immediately finds a user who was not loaded through “Show more”.