$ git clone -n https://src.fedoraproject.org/rpms/perl-grpc-xs.git /var/lib/mock/f40-build-803544-144293/root/chroot_tmpdir/scmroot/perl-grpc-xs
Cloning into '/var/lib/mock/f40-build-803544-144293/root/chroot_tmpdir/scmroot/perl-grpc-xs'...
$ git fetch origin b22069513d115e36349c9313ed1ff40a6d41535c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-grpc-xs
 * [new ref]         b22069513d115e36349c9313ed1ff40a6d41535c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b220695 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild