$ git clone -n https://src.fedoraproject.org/rpms/cogl.git /var/lib/mock/f41-build-side-1-2633275-25908/root/chroot_tmpdir/scmroot/cogl
Cloning into '/var/lib/mock/f41-build-side-1-2633275-25908/root/chroot_tmpdir/scmroot/cogl'...
$ git fetch origin bfb0980487165fd297fd1036ab791705c2b9e330:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cogl
 * [new ref]         bfb0980487165fd297fd1036ab791705c2b9e330 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bfb0980 convert license to SPDX