$ git clone -n https://src.fedoraproject.org/rpms/blogilo.git /var/lib/mock/f41-build-1034375-18630/root/chroot_tmpdir/scmroot/blogilo
Cloning into '/var/lib/mock/f41-build-1034375-18630/root/chroot_tmpdir/scmroot/blogilo'...
$ git fetch origin 9dbe2f1382c420bb44ed9ab9dfea6b22cf8e37e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/blogilo
 * [new ref]         9dbe2f1382c420bb44ed9ab9dfea6b22cf8e37e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9dbe2f1 Eliminate use of obsolete %patchN syntax (#2283636)