$ git clone -n https://src.fedoraproject.org/rpms/fbgemm.git /var/lib/mock/f41-build-854546-166886/root/chroot_tmpdir/scmroot/fbgemm
Cloning into '/var/lib/mock/f41-build-854546-166886/root/chroot_tmpdir/scmroot/fbgemm'...
$ git fetch origin 1d7f8da7643d410000f2ae1a4ef42f0f6ed2d269:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fbgemm
 * [new ref]         1d7f8da7643d410000f2ae1a4ef42f0f6ed2d269 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d7f8da Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild