Re: [trinity-devel] What causes "checking for tde-config... not found" failures?

Uh, not only did it work, it told you it worked. You can check out*any* commit at all as a new branch, including commits referenced by refs such as branches or tags. But if you check out a tag without creating a new branch off of it, git will warn you, as above, that if you commit at this point and then switch away, your commit is pointed to by nothing and thus will eventually be lost (not at once -- the reflog will point to it for a while, but reflogs are routinely expired by automated 'git gc' runs, so your commit will eventually vanish). (This state is called 'detached HEAD', because HEAD (which always points to your current checkout) is not pointing to the same place as the head of any branch, thus 'detached' from all branches.)