$ git clone -n http://fedora.riscv.rocks:3000/rpms/glibc.git /var/lib/mock/f40-build-775881-128477/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/f40-build-775881-128477/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin 3dad13b4845e28f9d91b7e1503c3eb949745b02c:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/glibc
 * [new ref]         3dad13b4845e28f9d91b7e1503c3eb949745b02c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3dad13b Apply Florian suggested patch to fix packaging