$ git clone -n https://src.fedoraproject.org/rpms/egl-gbm.git /var/lib/mock/f40-build-794239-139514/root/chroot_tmpdir/scmroot/egl-gbm
Cloning into '/var/lib/mock/f40-build-794239-139514/root/chroot_tmpdir/scmroot/egl-gbm'...
$ git fetch origin c0c6335c6cfb3f8e08ba136a590f2a95b8f1e317:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/egl-gbm
 * [new ref]         c0c6335c6cfb3f8e08ba136a590f2a95b8f1e317 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c0c6335 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild