The paper cited above refer to the tomb's garrison as sixty Turkish SF soldiers in September 2014; which may be in addition to the twentyfive soldiers cited in my first post.

Numbers matter as it appears ISIS detained half of the garrison yesterday:
A media activsit 36 Turkish soldiers.....were briefly detained by Islamic State forces on Tuesday night. “The arrest of the Turkish soldiers occurred under the watch of individual elements of IS....But IS released them all Tuesday night and they returned back to their posts.
Link:http://eaworldview.com/2014/10/syria...ntion/#turkey2

It's almost as if ISIS want Turkey to intervene. Or charitably a local decision reversed by a higher command.