Fill Command doesn't work with Different Colors of Glass

When using the fill command, there is no way to pick the color of the glass being filled with the command.

Setup: Enter in the command: /fill ~~~ ~~~ glass # (where # is the data value that selects the color of the glass)

Expectation: What this should do is fill the block exactly where you are standing with a block of glass that is the color you selected (e.g. black if you put in the "#" as "15")

What Happens: The glass that is filled is plain clear glass no matter what number you put into the command.