$ git clone -n https://src.fedoraproject.org/rpms/libXfixes.git /var/lib/mock/f40-build-784769-133588/root/chroot_tmpdir/scmroot/libXfixes
Cloning into '/var/lib/mock/f40-build-784769-133588/root/chroot_tmpdir/scmroot/libXfixes'...
$ git fetch origin f1dd281266a7801c442193ddb3d1532f7a1f9d65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libXfixes
 * [new ref]         f1dd281266a7801c442193ddb3d1532f7a1f9d65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1dd281 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild