Use `workspace number` for all numbered workspaces.
Use `workspace number` for all numbered workspaces.

*i3* partially ignores any non-numerical text after the number parameter
of the `workspace number` command (the first character has to be a
digit)

"Partially" means:

    workspace number "4: foobar"

will go to any existing workspace with the number "4", even if its name
is "4: thingamabob", but it will create "4: foobar" - not just "4" - if
there is no pre-existing workspace.

Adaephon-GH/i3-config