$ git clone -n https://src.fedoraproject.org/rpms/egl-gbm.git /var/lib/mock/f40-build-2244908-53732/root/chroot_tmpdir/scmroot/egl-gbm
Cloning into '/var/lib/mock/f40-build-2244908-53732/root/chroot_tmpdir/scmroot/egl-gbm'...
$ git fetch origin de040ff98c6c0b165ba56f2dc6471351718d3ed1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/egl-gbm
 * [new ref]         de040ff98c6c0b165ba56f2dc6471351718d3ed1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de040ff Update to 1.1.1