Channel with mention did not sort to the top

Description

When a reply was posted to a thread I posted on, I got the badge mention (as per my configuration) but the channel with the badge mention did not sort to the top.

There is an issue that was observed during the 5.14 dev single but, was believed resolved.

I observed this on Windows desktop client. This occurred on 5.14-rc5. I had not yet clicked the banner to refresh to 5.14.0

Repro steps:
1. Log in with two different browsers to two different users
2. Make sure users are on the same team, with at least 2 channels both users are in
3. With user A post to channel 1 and channel 2 (regular messages)
3. With user B switch to whichever channel is higher in the unreads section
4. With user A mention user B in the other channel (the one user A is not viewing)

Observed: The channel with the mention is not sorted to the top
Expected: The channel with the mention is at the top of the unreads section

QA Test Steps

None

Status

Mana

None

Assignee

Joram Wilander

Reporter

Dylan Haussermann

Epic Link

None

Fix versions

None

Mattermost Team

Sustained Engineering

Sprint

None

Labels

None

GitHub Issue

None