$ git clone -n http://fedora.riscv.rocks:3000/rpms/perl-srpm-macros.git /var/lib/mock/f40-build-733769-105409/root/chroot_tmpdir/scmroot/perl-srpm-macros
Cloning into '/var/lib/mock/f40-build-733769-105409/root/chroot_tmpdir/scmroot/perl-srpm-macros'...
$ git fetch origin 1d623260844e8cb72e6bdba2c413a8ff78f1d3e0:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/perl-srpm-macros
 * [new ref]         1d623260844e8cb72e6bdba2c413a8ff78f1d3e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d62326 Disable perl_bootstrap for Perl 5.38 (riscv64)