Yes, I have set indent type to tabs, spaces, whatever, and it still only ever inserts tabs.
Weird, did you follow the script I gave above exactly? Which step did not work?
The version 1.37.1 is essentially the same as the git version I am using. You have not given me any recipe for replicating the problem, as far as Git can tell that part of the code has not changed between that version and latest, so if a bug actually exists I should be able to replicate the problem, or understand where your misunderstanding is. Please test exactly the steps given and identify when it fails and provide a step by step recipe for replication of your problem.