UX: "No results found" on Mastodon handle with trailing space

[olithissen]

Entering a Mastodon handle with a trailing space yields the "No results found" error message. This may easily occur when the handle was copied.

Examples: (_ for space)

• "@user@instance": works
• "_@user@instance": defaults to "@user@instance" and works
• "@user@instance_": error

While the error messages clearly states, that this might be related to a typo, it still is somewhat unexpected behavior from an UX point of view.