Save selection not working properly ( :'<,'>w FILENAME )

[Luxsi]

I'm somewhat new to Vim, but from what I learned in Vimtutor I think this is a bug;
When you select text either with v or the mouse and type the command :'<,'>w FILENAME (the first part being automatic), it's expected to save the selection into a file, but instead it saves the entire document into FILENAME.

Having it fixed would help with, for example, creating templates that you can then call with :r FILENAME

[ricksladkey]

This feature was implemented in PR #2200 and so this issue can be closed.

Related to and a duplicate of #428.