Linux Desktop app — 'Select all' (when done via the menu) does nothing

Description

Found on Desktop app v4.5.1-rc3 on Linux (Ubuntu 18.04)

1 - Type some characters on the message compose box
2 - Go to Edit ➜ Select All in the menu

Expected: All text is selected (highlighted)
Observed: Nothing happens

Note: The keyboard shortcut (CTRL+A) works as expected

QA Test Steps

None

Mana

None

Assignee

Unassigned

QA Assignee

None

Reporter

Steve Mudie

Epic Link

None

Fix versions

Mattermost Team

Apps

Sprint

None

Labels

QA Testing Areas

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GitHub Issue

None

Components

None

Severity

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