$ git clone -n https://src.fedoraproject.org/rpms/cosmic-osd.git /var/lib/mock/f45-build-5263-338/root/chroot_tmpdir/scmroot/cosmic-osd
Cloning into '/var/lib/mock/f45-build-5263-338/root/chroot_tmpdir/scmroot/cosmic-osd'...
$ git fetch origin fb888f4ad7b5f9b532d3a06b5eec86b746c87404:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cosmic-osd
 * [new ref]         fb888f4ad7b5f9b532d3a06b5eec86b746c87404 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb888f4 Update to 1.6.0