$ git clone -n https://src.fedoraproject.org/rpms/DevIL.git /var/lib/mock/f40-build-2197822-51684/root/chroot_tmpdir/scmroot/DevIL
Cloning into '/var/lib/mock/f40-build-2197822-51684/root/chroot_tmpdir/scmroot/DevIL'...
$ git fetch origin bd0b128ee0c4487496b6f882065d31f66d6f1f83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/DevIL
 * [new ref]         bd0b128ee0c4487496b6f882065d31f66d6f1f83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bd0b128 Rebuild for jasper 4.1