Can't create a series name like '1'

Update canonical.launchpad.validators.name.name_validator:
        message = _(dedent("""
            Invalid name '${name}'. Names must be at least two characters
            long, start with a letter or number and be lowercase. The
            characters <samp>+</samp>, <samp>-</samp> and <samp>.</samp> are
            also allowed after the first character."""),
            mapping={'name': escape(name)})

My *preferred* solution was to allow names of only one character. I'd feel better if I understood why the restriction exists. What's the rationale for it?

Small grammar fix in your suggested change: "two characters long, start with a letter" => "two characters long, starting with a letter"

The launchpad name validator is for all names, not just product series. We really do no want 1 character names.

::shrug:: OK, just seems odd that a project can have a series "10" but not a series "1". One could always handle series names different than other names. But whatever, I can deal with the restriction.

Fixed in launchpad devel r8706.

Fixed released in Launchpad 2.2.7.