Extra whitespace when a marker includes a new line

[John Szakmeister]

Using this snippet definition, there's an extra space after "name":

    snippet defn "defn" b
    (defn ${1:name} ${2:
      "${3:doc-string}"
      }[${4:arg-list}]
      $0)
    endsnippet

Moreover, when you type a name (for instance, foobar) and hit tab, another space appears at the end of the line when selecting the newline plus the doc-string.

To make it more clear, immediately after snippet expansion I see this:

    (defn |name_
      "doc-string"
      [arg-list]
      )

where '|' is the cursor location, and _ is the trailing whitespace being inserted. If I give the function the name foobar, I see this:

    (defn foobar__
      "doc-string|"
      [arg-list]
      )

Only one of trailing whitespaces is highlighted in the selection.

My expectation is for no extra whitespace. This is with a fairly recent version of UltiSnips (from August 5th, 2013).

[SirVer (sirver)]

I can confirm this bug in the latest version of UltiSnips. Thanks for reporting - patches are welcome :).