terminator doesn't work on first character

[Chad Barraford]

If i GetTags on "### #. # the #foo #bar #baz #baz." and supply all special characters as runes (ie var specials = []rune(".=+-~,/ <>?[]{})(*&^%$#@!;:\"'|\\")), the resulting answer i get back is

achievements_test.go:27:
    c.Check(tags, DeepEquals, []string{"bar", "baz", "foo"})
... obtained []string = []string{"#", ".", "bar", "baz", "foo"}
... expected []string = []string{"bar", "baz", "foo"}

I only want my tags to be alphanumeric, and I can't seem to get that to work out of the box.