Mattermost-server: [Help Wanted] [MM-10406] Extra white space character will prevent slash commands from finding the user in the @mention

[jasonblais]

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Notes: Jira ticket

When using an @mention in a slash command, the user will not be found if I accidentally add a leading space in front of the @mention. The space character should be trimmed to prevent user error.

For example

/invite  @dylan.haussermann

will not find the user I am mentioning

Steps:

• Open a channel
• Note a user who is not currently a member
• Attempt to invite the target user but, include an extra space charter between the slash command and the @mention - "/invite @dylan.haussermann"

Expected: Extra white space is trimmed
Actual: User I'm trying to invite is not found -"We couldn't find the user"

[ry-wang]

I can take a look at this!

[tejasbubane]

@jasonblais I think this issue can be closed.

[jasonblais]

https://github.com/mattermost/mattermost-webapp/pull/1175