At least some characters in a shortcut link are double url-escaped. For example, if you have a shortcut link set up like this:

Key: niv
URL: http://www.biblegateway.com/passage/?version=31&search=%s
Default Alias: %s (NIV)

And then enter something like this:

\[Col 3:22-4:1@niv]

The final URL generated in the link will look like this:

http://www.biblegateway.com/passage/?version=31&search=Col+3%253A22-4%253A1

What it should look like is this:

http://www.biblegateway.com/passage/?version=31&search=Col+3%3A22-4%3A1

The difference being the extra '25' in the incorrect version. '%25' is the escape value for '%'. '%3A' is the escape value for ':'. So what seems to be happening is that the '%s' value is being URL-escaped twice, which means that the '%' itself in the already-escaped value is being escaped. This causes understandable confusion at the other end. Fixing would be much appreciated.