$ git clone -n https://src.fedoraproject.org/rpms/objfw.git /var/lib/mock/f40-build-2526106-61811/root/chroot_tmpdir/scmroot/objfw
Cloning into '/var/lib/mock/f40-build-2526106-61811/root/chroot_tmpdir/scmroot/objfw'...
$ git fetch origin 10a61d05463b55a688d7b762ea05f170e448693d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/objfw
 * [new ref]         10a61d05463b55a688d7b762ea05f170e448693d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10a61d0 Update to 1.0.11